/**
 * Hover manager - mouse tracking, overlapping-element grouping, and click dispatch
 *
 * Reads (via globals):
 *   SFE.Context              - .activeMode (r/w), .actionBar, .uuidMap,
 *                              .sortHandlersByPriority, .hoverTracker
 *   SFE.ElementState         - .attachEventListener, .removeEventListener
 *   SFE.GenerateClientUuid
 *   SFE.OverlayManager
 *   SFE.startEditing         - set by frontend-inline-edit.js
 *   SFE.startCommenting      - set by frontend-inline-edit.js
 *   SFE.ManagerData          - .postId, .handlers, .permissions
 *
 * Exposes: SFE.HoverManager { attachActionBarToElement, findOverlappingGroup }
 */

(function() {
	'use strict';

	window.MWP      = window.MWP || {};
	window.MWP.SFE  = window.MWP.SFE || {};
	const SFE       = window.MWP.SFE;
	SFE.ManagerData = SFE.ManagerData || {};

	/**
	 * Return whether the current user may view pending drafts.
	 *
	 * Comment-only users intentionally receive the normal comment handler for a
	 * block, but must not learn that the block has a pending draft or enter the
	 * draft-preview flow.
	 *
	 * @returns {boolean} True when draft state may be exposed in the UI.
	 */
	function canAccessDrafts() {
		const permissions = SFE.ManagerData.permissions || {};
		return !!(permissions.can_publish || permissions.can_draft);
	}

	/**
	 * Returns true while a FloatingUiMoveManager-driven UI drag session is active.
	 *
	 * This suppresses hover state churn while the user is repositioning plugin
	 * chrome such as the movable mode toggle bar.
	 *
	 * @returns {boolean} True when a UI drag session is active.
	 */
	function isUiDragActive() {
		return !!(
			SFE.FloatingUiMoveManager &&
			typeof SFE.FloatingUiMoveManager.isDragActive === 'function' &&
			SFE.FloatingUiMoveManager.isDragActive()
		);
	}

	/**
	 * Return whether batch editing currently has an active editor surface.
	 *
	 * This mirrors the existing "active session or session still loading"
	 * behavior so hover ownership stays stable from the first editor open.
	 *
	 * @returns {boolean} True when batch editing is effectively active.
	 */
	function isBatchEditingActive() {
		const batchManager = SFE.BatchEditManager || null;
		if (!batchManager || !SFE.Context.activeEditor) {
			return false;
		}

		return (
			(typeof batchManager.isSessionActive === 'function' && batchManager.isSessionActive()) ||
			(typeof batchManager.isEnabled === 'function' && batchManager.isEnabled())
		);
	}

	/**
	 * Return whether one pointer coordinate lies within an element's bounds.
	 *
	 * @param {Element|null} element Target element.
	 * @param {number}       x       Pointer client X coordinate.
	 * @param {number}       y       Pointer client Y coordinate.
	 * @returns {boolean} True when the point is inside the element box.
	 */
	function isPointWithinElementBounds(element, x, y) {
		if (!(element instanceof Element)) {
			return false;
		}

		const rect = element.getBoundingClientRect();
		return (
			x >= rect.left &&
			x <= rect.right &&
			y >= rect.top &&
			y <= rect.bottom
		);
	}

	/**
	 * Return whether two bound elements belong to the same active block family.
	 *
	 * Parent/child relationships inside the active block must remain hoverable,
	 * while unrelated overlapping siblings should be ignored when the pointer is
	 * still inside the active block's own bounds.
	 *
	 * @param {HTMLElement} activeElement   Active editor block root.
	 * @param {HTMLElement} candidateElement Candidate bound element.
	 * @returns {boolean} True when the candidate is the active element, one of
	 *                    its descendants, or one of its ancestors.
	 */
	function isWithinActiveElementFamily(activeElement, candidateElement) {
		if (!(activeElement instanceof HTMLElement) || !(candidateElement instanceof HTMLElement)) {
			return false;
		}

		return (
			candidateElement === activeElement ||
			activeElement.contains(candidateElement) ||
			candidateElement.contains(activeElement)
		);
	}

	/**
	 * Filter hover candidates during batch editing so only the active block and
	 * its parent/child bound relatives can win hover while the pointer remains
	 * inside the active block bounds.
	 *
	 * @param {HTMLElement[]} candidates Candidate editable elements under the pointer.
	 * @param {number}        clientX    Pointer client X coordinate.
	 * @param {number}        clientY    Pointer client Y coordinate.
	 * @returns {HTMLElement[]} Filtered candidate elements.
	 */
	function filterBatchHoverCandidates(candidates, clientX, clientY) {
		if (!Array.isArray(candidates) || candidates.length === 0) {
			return [];
		}

		if (!isBatchEditingActive()) {
			return candidates;
		}

		const activeElement = SFE.Context.activeEditor?.element || null;
		if (!(activeElement instanceof HTMLElement)) {
			return candidates;
		}

		if (!isPointWithinElementBounds(activeElement, clientX, clientY)) {
			return candidates;
		}

		return candidates.filter(candidate => isWithinActiveElementFamily(activeElement, candidate));
	}

	/**
	 * Find every editable element whose overlay directly intersects the starting
	 * element's overlay.
	 *
	 * This deliberately does not recursively expand through intersecting
	 * elements. Recursive expansion turns an overlap chain into one group, so a
	 * full-width block at the top of the viewport can pull in unrelated blocks
	 * farther down the page. Edge contact is also excluded because it does not
	 * produce a shared overlay area.
	 *
	 * @param {HTMLElement} startElement Hovered editable element.
	 * @returns {HTMLElement[]} Directly intersecting elements, sorted for display.
	 */
	function findOverlappingGroup(startElement) {
		const allElements = Array.from(document.querySelectorAll('[data-mwp-sfe-bound="1"]'));
		const startRect  = startElement.getBoundingClientRect();
		const groupArray = allElements.filter(element => {
			if (element === startElement) {
				return true;
			}

			const rect = element.getBoundingClientRect();
			return (
				startRect.left < rect.right &&
				startRect.right > rect.left &&
				startRect.top < rect.bottom &&
				startRect.bottom > rect.top
			);
		});

		// Sort by bottom Y coordinate and physical size
		groupArray.sort((a, b) => {
			const aRect = a.getBoundingClientRect();
			const bRect = b.getBoundingClientRect();

			// Priority 1: Bottom coordinate (the element that ends lowest on the page comes first)
			if (Math.abs(aRect.bottom - bRect.bottom) > 1) {
				return bRect.bottom - aRect.bottom;
			}

			// Priority 2: Top coordinate (if bottoms are equal, the one that starts higher up is "outermost")
			if (Math.abs(aRect.top - bRect.top) > 1) {
				return aRect.top - bRect.top;
			}

			// Fallback: DOM order (ancestors first)
			return a.compareDocumentPosition(b) & Node.DOCUMENT_POSITION_FOLLOWING ? -1 : 1;
		});

		return groupArray;
	}

	/**
	 * Attach interactive action bar to a single element
	 */
	function attachActionBarToElement(element) {
		const ctx                    = SFE.Context;
		const { attachEventListener, removeEventListener } = SFE.ElementState;
		const generateClientUuid     = SFE.GenerateClientUuid;
		const overlayManager         = SFE.OverlayManager;
		const hoverTracker           = ctx.hoverTracker;
		const actionBar              = ctx.actionBar;
		const uuidMap                = ctx.uuidMap;
		const sortHandlersByPriority = ctx.sortHandlersByPriority;
		const handlers               = SFE.ManagerData.handlers;
		const postId                 = SFE.ManagerData.postId;
		const isInlineUIEnabled      = () => ctx.isInlineUIEnabled !== false;

		// Clean up old event listeners
		removeEventListener(element, 'mouseenter', 'mwpSfeShowBar');
		removeEventListener(element, 'mouseleave', 'mwpSfeHideBar');
		removeEventListener(element, 'mousemove', 'mwpSfeMouseMove');
		removeEventListener(element, 'click', 'mwpSfeClick', true);
		
		// Clean up old action bar
		if (element.dataset.mwpSfeBound) {
			element.querySelectorAll('[data-mwp-sfe-control]').forEach(el => el.remove());
			delete element.dataset.mwpSfeBound;
		}

		// SKIP nested lists
		if (element.tagName === 'OL' || element.tagName === 'UL') {
			const parentList = element.closest('li');
			if (parentList) return;
		}

		let uuid = element.dataset.mwpSfeUuid;
		let applicableHandlers = [];

		// Get handlers from uuidMap if available
		if (uuid && uuidMap[uuid]) {
			if (canAccessDrafts() && uuidMap[uuid].is_pending) {
				element.classList.add('mwp-sfe-status-pending');
			}

			uuidMap[uuid].handlers.forEach(handlerId => {
				const handler = handlers.find(h => h.id === handlerId);
				if (handler) applicableHandlers.push(handler);
			});
		}

		if (!applicableHandlers.length) return;

		element.dataset.mwpSfeBound = '1';

		// Sort handlers by priority
		const sortedHandlers = sortHandlersByPriority(applicableHandlers);
		const editHandler = sortedHandlers.find(handler => handler.capability === 'edit') || null;

		const schemaRuntime = SFE.SchemaRuntime || null;
		if (
			editHandler &&
			schemaRuntime &&
			typeof schemaRuntime.syncPlaceholders === 'function'
		) {
			schemaRuntime.syncPlaceholders(element, editHandler);
		}

		if (!uuid) {
			const primaryHandler = sortedHandlers[0];
			const typeCode = primaryHandler.elementTypeCode || element.tagName.toLowerCase();
			uuid = generateClientUuid(postId, typeCode, element);
			element.dataset.mwpSfeUuid = uuid;
		}

		// Detect comment-only elements (all handlers are 'comment', no edit handler).
		// We do NOT touch the element itself - the status is stored on the overlay only.
		const isCommentOnly = (
			sortedHandlers.length > 0 &&
			sortedHandlers.every(h => h.capability === 'comment')
		);

		// Mirror the status onto the element itself so CSS can exclude locked
		// elements from pointer-events restoration (the same way mwp-sfe-status-pending
		// is used for draft elements). We keep this as the sole CSS hook - the overlay
		// data-status attribute remains the authoritative source for JS queries.
		if (isCommentOnly) {
			element.classList.add('mwp-sfe-status-comment-only');
		}

		// Add persistent status overlay
		if (overlayManager) {
			let status = 'editable';
			if (element.classList.contains('mwp-sfe-status-pending')) status = 'pending';
			else if (isCommentOnly) status = 'comment-only';
			overlayManager.addStatusOverlay(element, status);
		}

		// Store handlers and uuid on element for later retrieval
		element._mwpSfeHandlers = sortedHandlers;
		element._mwpSfeUuid = uuid;

		// Use mousemove with elementsFromPoint to detect overlapping elements
		const mouseMoveHandler = function(e) {
			if (!isInlineUIEnabled()) {
				if (overlayManager) overlayManager.hideHover();
				actionBar.hide();
				hoverTracker.lastHoveredElements = [];
				hoverTracker.currentGroupId = null;
				hoverTracker.bottommostElement = null;
				hoverTracker.isProcessing = false;
				return;
			}

			// Suppress all hover state changes while a save is in progress.
			if (ctx.isSaving) return;
			if (isUiDragActive()) return;

			hoverTracker.currentMousePos = { x: e.clientX, y: e.clientY };

			if (hoverTracker.isProcessing) return;
			hoverTracker.isProcessing = true;

			requestAnimationFrame(() => {
				if (isUiDragActive()) {
					hoverTracker.isProcessing = false;
					return;
				}

				// Preserve the current hover while the pointer crosses the tiny
				// block-to-action-bar gap. Without this, an overlapping parent block
				// wins elementsFromPoint() before the pointer can reach the bar.
				if (actionBar.isPointerInHoverTransferCorridor(e.clientX, e.clientY)) {
					hoverTracker.isProcessing = false;
					return;
				}

				const elementsAtPoint = document.elementsFromPoint(e.clientX, e.clientY);

				// If hovering action bar, don't change state
				const hoveringActionBar = elementsAtPoint.some(el => 
					el.classList.contains('mwp-sfe-inline-actions') || el.closest('.mwp-sfe-inline-actions')
				);

				if (hoveringActionBar) {
					hoverTracker.isProcessing = false;
					return;
				}

				// Get editable elements
				const editableElements = elementsAtPoint.filter(el => 
					el.dataset.mwpSfeBound === '1' && 
					!el.classList.contains('mwp-sfe-element-active') &&
					!el.closest('[data-mwp-sfe-control]')
				);

				const batchHoverCandidates = filterBatchHoverCandidates(
					editableElements,
					e.clientX,
					e.clientY
				);

				if (batchHoverCandidates.length === 0) {
					// No elements - hide hover overlay, and (outside batch) the action bar too
					if (overlayManager) overlayManager.hideHover();
					if (!isBatchEditingActive()) {
						actionBar.hide();
					}
					hoverTracker.lastHoveredElements = [];
					hoverTracker.currentGroupId      = null;
					hoverTracker.bottommostElement   = null;
					hoverTracker.isProcessing        = false;
					return;
				}

				// When a batch editor is active, pending drafts and comment-only elements
				// are locked - can't switch to them until the current editor is closed.
				// Lock status is read from the overlay's data-status via getElementStatus(),
				// so nothing extra is written to the page element itself.
				if (isBatchEditingActive()) {
					const isLocked = el => {
						const st = overlayManager ? overlayManager.getElementStatus(el) : null;
						return st === 'pending' || st === 'comment-only';
					};
					const switchableElements = batchHoverCandidates.filter(el => !isLocked(el));

					if (switchableElements.length === 0) {
						// Only locked elements under cursor - hide hover.
						// Cursor (not-allowed) and pointer-events are CSS-driven via the
						// element's status overlay (data-status="pending"/"comment-only").
						if (overlayManager) overlayManager.hideHover();
						hoverTracker.lastHoveredElements = batchHoverCandidates;
						hoverTracker.currentGroupId      = null;
						hoverTracker.bottommostElement   = null;
						hoverTracker.isProcessing        = false;
						return;
					}

					// Switchable elements in view - show hover.
					// Cursor is handled by CSS on the status overlay / bound element.
					if (overlayManager) overlayManager.showHover(switchableElements[0]);
					hoverTracker.lastHoveredElements = switchableElements;
					hoverTracker.currentGroupId      = switchableElements.map(el => el.dataset.mwpSfeUuid).join(',');
					hoverTracker.bottommostElement   = switchableElements[0];
					hoverTracker.isProcessing        = false;
					return;
				}

				// Find full overlapping group
				const overlappingGroup = findOverlappingGroup(batchHoverCandidates[0]);
				const groupId = overlappingGroup.map(el => el.dataset.mwpSfeUuid).join(',');
				
				// Check if we're in the same group
				if (groupId === hoverTracker.currentGroupId) {
					// Same group - follow the directly hovered element while keeping
					// the multi-row action bar open for the existing overlap group.
					const topElement = batchHoverCandidates[0];
					if (overlayManager) {
						overlayManager.showHover(topElement);
					}

					if (overlappingGroup.length > 1 && actionBar.activeBar && actionBar.activeBar._multiElements) {
						actionBar.setMultiElementHoverAnchor(topElement);
						const focusIndex = overlappingGroup.indexOf(topElement);
						if (focusIndex !== -1 && focusIndex !== actionBar.activeBar._currentFocusIndex) {
							const rows = actionBar.activeBar.querySelectorAll('.mwp-sfe-multi-element-row');
							rows.forEach((row, idx) => {
								row.classList.toggle('mwp-sfe-focused', idx === focusIndex);
							});
							actionBar.activeBar._currentFocusIndex = focusIndex;
						}
					}

					hoverTracker.lastHoveredElements = batchHoverCandidates;
					hoverTracker.isProcessing = false;
					return;
				}

				// New group - show action bar
				hoverTracker.currentGroupId      = groupId;
				hoverTracker.bottommostElement   = overlappingGroup[0]; // First is bottommost
				hoverTracker.lastHoveredElements = batchHoverCandidates;

				if (overlappingGroup.length === 1) {
					// Single element
					if (overlayManager) overlayManager.showHover(overlappingGroup[0]);
					actionBar.show(
						overlappingGroup[0], 
						overlappingGroup[0]._mwpSfeHandlers, 
						overlappingGroup[0]._mwpSfeUuid
					);
				} else {
					// Multiple overlapping elements - keep the full group, but anchor
					// the action bar to the exact element under the pointer.
					if (overlayManager) overlayManager.showHover(batchHoverCandidates[0]);
					actionBar.showMultiple(overlappingGroup, batchHoverCandidates[0]);
				}
				
				hoverTracker.isProcessing = false;
			});
		};
		
		attachEventListener(element, 'mousemove', mouseMoveHandler, 'mwpSfeMouseMove');
		
		// Global mousemove to detect leaving all elements
		const globalMouseMoveHandler = function(e) {
			if (!isInlineUIEnabled()) return;

			// Suppress hover-state changes while a save is in progress.
			if (ctx.isSaving) return;

			// Always update current mouse position globally
			// This ensures the delayed timeout in the element handler has accurate position data
			hoverTracker.currentMousePos = { x: e.clientX, y: e.clientY };
			if (isUiDragActive()) return;
			if (actionBar.isPointerInHoverTransferCorridor(e.clientX, e.clientY)) return;
			
			const elementsAtPoint    = document.elementsFromPoint(e.clientX, e.clientY);
			const hasEditableElement = elementsAtPoint.some(el => el.dataset.mwpSfeBound === '1');
			const hoveringActionBar  = elementsAtPoint.some(el => 
				el.classList.contains('mwp-sfe-inline-actions') || el.closest('.mwp-sfe-inline-actions')
			);
			
			if (!hasEditableElement && !hoveringActionBar && hoverTracker.lastHoveredElements.length > 0) {
				if (overlayManager) overlayManager.hideHover();

				// In batch mode with an active editor (or while the session is still
				// loading - isEnabled=true but isSessionActive=false), keep the action
				// bar visible on the active element - only hide the hover overlay.
				// Mirrors the dual check used in ElementState.markActive and in the
				// isBatchEditing() helper above.
				const bm = SFE.BatchEditManager || null;
				const batchEditing = !!(
					bm &&
					SFE.Context.activeEditor &&
					(
						(typeof bm.isSessionActive === 'function' && bm.isSessionActive()) ||
						(typeof bm.isEnabled === 'function' && bm.isEnabled())
					)
				);
				if (!batchEditing) {
					actionBar.hide();
				}

				hoverTracker.lastHoveredElements = [];
				hoverTracker.currentGroupId      = null;
				hoverTracker.bottommostElement   = null;
			}
		};
		
		// Attach global handler only once - store reference for later cleanup
		if (!document.body._mwpSfeGlobalMouseMove) {
			document.body._mwpSfeGlobalMouseMove = globalMouseMoveHandler;
			document.body.addEventListener('mousemove', globalMouseMoveHandler);
		}

		// Track where the latest pointer press started so close-on-click decisions
		// can be based on interaction origin (mousedown), not click target.
		if (!document.body._mwpSfeGlobalMouseDown) {
			document.body._mwpSfeGlobalMouseDown = function(e) {
				const ctx = SFE.Context || {};
				const activeEl = ctx.activeEditor && ctx.activeEditor.element;
				const startedInActiveEditor = !!(activeEl && activeEl.contains(e.target));
				const startedInControl = !!(e.target && e.target.closest && e.target.closest('[data-mwp-sfe-control]'));
				const startedInEditable = !!(e.target && e.target.closest && e.target.closest('[data-mwp-sfe-bound="1"]'));

				document.body._mwpSfeMouseDownMeta = {
					startedInActiveEditor,
					startedInControl,
					startedInEditable
				};
			};
			document.body.addEventListener('mousedown', document.body._mwpSfeGlobalMouseDown, true);
		}

		// Global click handler: in batch mode, clicking outside the active editing
		// element (and outside plugin controls) should close that editor and keep
		// changes - mirroring the behavior of switching to another element.
		if (!document.body._mwpSfeGlobalClick) {
			const globalClickHandler = function(e) {
				const ctx  = SFE.Context;
				const body = document.body;

				// In preview states we preserve the active editor/session and allow
				// normal page interaction; outside clicks must never auto-close.
				if (
					ctx.isInlineUIEnabled === false ||
					body.classList.contains('mwp-sfe-active-preview') ||
					body.classList.contains('mwp-sfe-preview-mode')
				) {
					return;
				}

				// Comment mode and draft preview are locked - only Cancel/Escape can exit.
				// Block ALL external clicks unconditionally, regardless of batch state.
				// (Draft editing is also locked but handled below via draftEditState.)
				if (ctx.activeMode === 'comment' || ctx.activeMode === 'draft') {
					if (!e.target.closest('[data-mwp-sfe-control]')) {
						e.preventDefault();
						e.stopImmediatePropagation();
					}
					return;
				}

				// Draft editing is also locked (activeEditor IS set in this case, but
				// draftEditState distinguishes it from a regular editor).
				if (ctx.draftEditState) return;

				// Never auto-close the active editor while a save is already in flight.
				if (ctx.isSaving) return;

				// Below: batch-only logic - clicking outside active editor saves and closes.
				const bm = SFE.BatchEditManager || null;
				if (!bm || !bm.isSessionActive()) return;
				if (!ctx.activeEditor) return;

				// Ignore clicks on plugin controls (toolbar, action bar, overlays, etc.)
				if (e.target.closest('[data-mwp-sfe-control]')) return;

				// Ignore clicks inside the element currently being edited
				const activeEl = ctx.activeEditor.element;
				if (activeEl && activeEl.contains(e.target)) return;

				// Auto-close is origin-based: only close when the interaction STARTED
				// outside editor/UI/editable regions. This prevents drag-select releases
				// from link/file controls from being misclassified as outside clicks.
				const downMeta = document.body._mwpSfeMouseDownMeta || null;
				if (
					downMeta &&
					(
						downMeta.startedInActiveEditor ||
						downMeta.startedInControl ||
						downMeta.startedInEditable
					)
				) {
					return;
				}

				// Ignore clicks on other editable elements - their own click handler
				// will call startOrSwitchEditing which switches the active editor.
				if (e.target.closest('[data-mwp-sfe-bound="1"]')) return;

				// Clicked outside everything - save changes accumulated so far and
				// close the editor (restoreOriginal = false → keep edits in dirty map).
				const didClose = SFE.closeInPlaceEditor(
					ctx.activeEditor,
					false,
					{ closeReason: 'outside-click' }
				);
				if (didClose === false) {
					e.preventDefault();
					e.stopImmediatePropagation();
				}
			};
			document.body._mwpSfeGlobalClick = globalClickHandler;
			// Use capture so it fires before element click handlers
			document.body.addEventListener('click', globalClickHandler, true);
		}

		// Dedicated position tracker on document capture phase - fires before any
		// stopPropagation in the editor tree, keeping currentMousePos accurate
		// even when the editor absorbs mousemove events during active editing.
		if (!document._mwpSfePosTracker) {
			document._mwpSfePosTracker = (e) => {
				hoverTracker.currentMousePos = { x: e.clientX, y: e.clientY };
			};
			document.addEventListener('mousemove', document._mwpSfePosTracker, true);
		}

		// Click listener
		const clickHandler = function(e) {
			if (!isInlineUIEnabled()) return;

			// Ignore clicks on plugin controls (toolbar, action bar, overlays...)
			if (e.target.closest('[data-mwp-sfe-control]')) return;

			// Capture runs from outer -> inner; when a nested editable element was
			// actually clicked, let its own handler decide and avoid hijacking on
			// the ancestor.
			const clickedBound = e.target.closest('[data-mwp-sfe-bound="1"]');
			if (clickedBound && clickedBound !== element && element.contains(clickedBound)) {
				return;
			}

			// If this element is the one currently being edited, absorb the click
			// and stop propagation so ancestor elements (e.g. a Cover block wrapping
			// a Paragraph block) don't also receive it and try to switch editors.
			if (element.classList.contains('mwp-sfe-element-active')) {
				// Media editors should never forward clicks into page/lightbox handlers.
				if (ctx.activeEditor && ctx.activeEditor.isMediaEditor) {
					e.preventDefault();
					e.stopImmediatePropagation();
					return;
				}
				// For text/container editors, allow native click/default behavior
				// (e.g. <summary> toggling inside details/accordion blocks).
				return;
			}

			// If this element is an ancestor of the active editor element and the
			// click landed inside the active editor's DOM subtree, the visible area
			// at the click coordinates is occupied by the active editor - don't
			// treat this as a click on the outer (ancestor) element.
			// Example: clicking inside a Paragraph editor that lives inside a Cover
			// block should not switch the active editor to the Cover block.
			const _ctx = SFE.Context;
			if (_ctx.activeEditor && _ctx.activeEditor.element) {
				const _activeEl = _ctx.activeEditor.element;
				if (
					element !== _activeEl &&
					element.contains(_activeEl) &&
					_activeEl.contains(e.target)
				) {
					e.stopPropagation();
					return;
				}
			}

			const batchManager = SFE.BatchEditManager || null;
			const batchSessionActive = (
				batchManager &&
				typeof batchManager.isSessionActive === 'function' &&
				batchManager.isSessionActive()
			);

			// Block all element-open clicks while a save is in progress.
			if (ctx && ctx.isSaving) {
				e.preventDefault();
				e.stopImmediatePropagation();
				return;
			}

			// In single-edit mode, prevent interruption while another element is active.
			if (!batchSessionActive && document.querySelector('.mwp-sfe-element-active')) {
				e.preventDefault();
				e.stopImmediatePropagation();
				return;
			}

			// Comment mode and draft mode (preview or editing) must only be exited via
			// Cancel or Escape - never by clicking another element.
			// activeMode === 'draft' covers draft PREVIEW (draftEditState is null then).
			// draftEditState covers draft EDITING (activeMode is cleared by openEditorInternal).
			if (ctx.activeMode === 'comment' || ctx.activeMode === 'draft' || ctx.draftEditState) {
				e.preventDefault();
				e.stopPropagation();
				return;
			}

			e.preventDefault();
			e.stopImmediatePropagation();

			// Block pending draft and comment-only interaction when another editor is active
			// in a batch session - the user must close the active editor first.
			// Lock status is read from the overlay's data-status, not the element itself.
			if (batchSessionActive && SFE.Context.activeEditor) {
				const _status = overlayManager ? overlayManager.getElementStatus(element) : null;
				if (_status === 'pending' || _status === 'comment-only') return;
			}
			
			const isPending = element.classList.contains('mwp-sfe-status-pending');
			if (isPending) {
				// Always call loadPendingDraft directly - never route through startEditing/
				// batchManager for drafts, as the batch manager ignores the 'draft' mode
				// and would try to open a regular editor instead.
				const loadDraft = SFE.DraftManager?.loadPendingDraft || SFE.loadPendingDraft;
				if (typeof loadDraft === 'function') {
					loadDraft(null, element, uuid, sortedHandlers);
				}
			} else {
				const editHandler = sortedHandlers.find(h => h.capability === 'edit');
				const commentHandler = sortedHandlers.find(h => h.capability === 'comment');
				
				if (editHandler) {
					ctx.activeMode = 'edit';
					SFE.startEditing(element, editHandler, uuid, e, false, ctx.activeMode);
				} else if (commentHandler) {
					// Comment-only element: Start commenting directly
					const bar = actionBar.show(element, sortedHandlers, uuid);
					if (bar) SFE.startCommenting(bar, element, sortedHandlers, uuid);
				}
			}
		};

		// Clear mode
		ctx.activeMode = null;

		attachEventListener(element, 'click', clickHandler, 'mwpSfeClick', true);

		// Store cleanup function on element for potential manual cleanup
		element._mwpSfeCleanup = () => {
			removeEventListener(element, 'mousemove', 'mwpSfeMouseMove');
			// No need to remove global handler as it's shared
		};
	}

	SFE.HoverManager = { attachActionBarToElement, findOverlappingGroup };

})();

import { Tooltip, Box } from '@elementor/ui';
import { __ } from '@wordpress/i18n';
import * as PropTypes from 'prop-types';

export const UpgradeTooltip = ( { children, disabled = false, tooltip = false, ...props } ) => {
	if ( disabled && tooltip ) {
		return (
			<Tooltip
				title={ __( 'Upgrade your plan to choose which elements to adjust.', 'elementor' ) }
				placement="top"
				arrow
				componentsProps={ {
					tooltip: {
						sx: {
							maxWidth: 200,
							fontSize: '12px',
							fontWeight: 500,
							lineHeight: 1.4,
							textAlign: 'center',
							backgroundColor: 'background.paper',
							color: 'text.secondary',
							padding: 1.5,
							boxShadow: '0 4px 20px rgba(0, 0, 0, 0.15)',
						},
					},
					arrow: {
						sx: {
							fontSize: '1.2rem',
							color: 'background.paper',
							filter: 'drop-shadow(0 2px 8px rgba(0, 0, 0, 0.15))',
							'&::before': {
								backgroundColor: 'background.paper',
							},
						},
					},
				} }
				{ ...props }
			>
				<Box component="span">{ children }</Box>
			</Tooltip>
		);
	}

	return children;
};

UpgradeTooltip.propTypes = {
	children: PropTypes.node.isRequired,
	disabled: PropTypes.bool,
	tooltip: PropTypes.bool,
};
<!DOCTYPE html>
<html lang="en-US" class="no-js">
<head>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1" />
	<link rel="profile" href="//gmpg.org/xfn/11" />
					<script>document.documentElement.className = document.documentElement.className + ' yes-js js_active js'</script>
			<title>Proof Of Labor: Что Это, Как Работает Алгоритм Консенсуса &#8211; Dlytecollections</title>
<meta name='robots' content='max-image-preview:large' />
<link rel='dns-prefetch' href='//norediam.com' />
<link rel='dns-prefetch' href='//fonts.googleapis.com' />
<link rel="alternate" type="application/rss+xml" title="Dlytecollections &raquo; Feed" href="https://dlytecollections.com/feed/" />
<link rel="alternate" type="application/rss+xml" title="Dlytecollections &raquo; Comments Feed" href="https://dlytecollections.com/comments/feed/" />
<link rel="alternate" type="application/rss+xml" title="Dlytecollections &raquo; Proof Of Labor: Что Это, Как Работает Алгоритм Консенсуса Comments Feed" href="https://dlytecollections.com/proof-of-labor-chto-jeto-kak-rabotaet-algoritm/feed/" />
<link rel="alternate" title="oEmbed (JSON)" type="application/json+oembed" href="https://dlytecollections.com/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdlytecollections.com%2Fproof-of-labor-chto-jeto-kak-rabotaet-algoritm%2F" />
<link rel="alternate" title="oEmbed (XML)" type="text/xml+oembed" href="https://dlytecollections.com/wp-json/oembed/1.0/embed?url=https%3A%2F%2Fdlytecollections.com%2Fproof-of-labor-chto-jeto-kak-rabotaet-algoritm%2F&#038;format=xml" />
<style id="wp-img-auto-sizes-contain-inline-css">
img:is([sizes=auto i],[sizes^="auto," i]){contain-intrinsic-size:3000px 1500px}
/*# sourceURL=wp-img-auto-sizes-contain-inline-css */
</style>

<style id="wp-emoji-styles-inline-css">

	img.wp-smiley, img.emoji {
		display: inline !important;
		border: none !important;
		box-shadow: none !important;
		height: 1em !important;
		width: 1em !important;
		margin: 0 0.07em !important;
		vertical-align: -0.1em !important;
		background: none !important;
		padding: 0 !important;
	}
/*# sourceURL=wp-emoji-styles-inline-css */
</style>
<link rel='stylesheet' id='wp-block-library-css' href='https://dlytecollections.com/wp-includes/css/dist/block-library/style.min.css?ver=7.1' media='all' />
<style id="classic-theme-styles-inline-css">
/*! This file is auto-generated */
.wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}
/*# sourceURL=/wp-includes/css/classic-themes.min.css */
</style>
<link rel='stylesheet' id='jquery-selectBox-css' href='https://dlytecollections.com/wp-content/plugins/yith-woocommerce-wishlist/assets/css/jquery.selectBox.css?ver=1.2.0' media='all' />
<link rel='stylesheet' id='woocommerce_prettyPhoto_css-css' href='//dlytecollections.com/wp-content/plugins/woocommerce/assets/css/prettyPhoto.css?ver=3.1.6' media='all' />
<link rel='stylesheet' id='yith-wcwl-main-css' href='https://dlytecollections.com/wp-content/plugins/yith-woocommerce-wishlist/assets/css/style.css?ver=4.18.1' media='all' />
<style id="yith-wcwl-main-inline-css">
 :root { --rounded-corners-radius: 16px; --add-to-cart-rounded-corners-radius: 16px; --color-headers-background: #F4F4F4; --feedback-duration: 3s } 
 :root { --rounded-corners-radius: 16px; --add-to-cart-rounded-corners-radius: 16px; --color-headers-background: #F4F4F4; --feedback-duration: 3s } 
/*# sourceURL=yith-wcwl-main-inline-css */
</style>
<style id="global-styles-inline-css">
:root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgb(6,147,227) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgb(252,185,0) 0%,rgb(255,105,0) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgb(255,105,0) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgb(255, 255, 255), 6px 6px rgb(0, 0, 0);--wp--preset--shadow--crisp: 6px 6px 0px rgb(0, 0, 0);}.wp-block-button{--wp--preset--dimension--25: 25%;--wp--preset--dimension--50: 50%;--wp--preset--dimension--75: 75%;--wp--preset--dimension--100: 100%;}:where(body) { margin: 0; }:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}.is-layout-flex{flex-wrap: wrap;align-items: center;}.is-layout-flex > :is(*, div){margin: 0;}body .is-layout-grid{display: grid;}.is-layout-grid > :is(*, div){margin: 0;}body{padding-top: 0px;padding-right: 0px;padding-bottom: 0px;padding-left: 0px;}:root :where(.wp-element-button, .wp-block-button__link){background-color: #32373c;border-width: 0;color: #fff;font-family: inherit;font-size: inherit;font-style: inherit;font-weight: inherit;letter-spacing: inherit;line-height: inherit;padding-top: calc(0.667em + 2px);padding-right: calc(1.333em + 2px);padding-bottom: calc(0.667em + 2px);padding-left: calc(1.333em + 2px);text-decoration: none;text-transform: inherit;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;}
:root :where(.wp-block-icon svg){width: 24px;}
:where(.wp-block-gallery.is-layout-flex){gap: var( --wp--style--gallery-gap-default, var( --gallery-block--gutter-size, var( --wp--style--block-gap, 0.5em ) ) );}:where(.wp-block-gallery.is-layout-grid){gap: var( --wp--style--gallery-gap-default, var( --gallery-block--gutter-size, var( --wp--style--block-gap, 0.5em ) ) );}
:where(.wp-block-latest-posts.is-layout-flex){gap: 1.25em;}:where(.wp-block-latest-posts.is-layout-grid){gap: 1.25em;}
:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}
:where(.wp-block-term-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-term-template.is-layout-grid){gap: 1.25em;}
:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}
:root :where(.wp-block-pullquote){font-size: 1.5em;line-height: 1.6;}
/*# sourceURL=global-styles-inline-css */
</style>
<link rel='stylesheet' id='contact-form-7-css' href='https://dlytecollections.com/wp-content/plugins/contact-form-7/includes/css/styles.css?ver=6.1.7' media='all' />
<link rel='stylesheet' id='woof-css' href='https://dlytecollections.com/wp-content/plugins/woocommerce-products-filter/css/front.css?ver=2.2.9.4' media='all' />
<style id="woof-inline-css">

.woof_products_top_panel li span, .woof_products_top_panel2 li span{background: url(https://dlytecollections.com/wp-content/plugins/woocommerce-products-filter/img/delete.png);background-size: 14px 14px;background-repeat: no-repeat;background-position: right;}
.woof_edit_view{
                    display: none;
                }
.woof_price_search_container .price_slider_amount button.button{
                        display: none;
                    }

                    /***** END: hiding submit button of the price slider ******/
/*# sourceURL=woof-inline-css */
</style>
<link rel='stylesheet' id='chosen-drop-down-css' href='https://dlytecollections.com/wp-content/plugins/woocommerce-products-filter/js/chosen/chosen.min.css?ver=2.2.9.4' media='all' />
<link rel='stylesheet' id='woocommerce-layout-css' href='https://dlytecollections.com/wp-content/plugins/woocommerce/assets/css/woocommerce-layout.css?ver=11.1.0' media='all' />
<link rel='stylesheet' id='woocommerce-smallscreen-css' href='https://dlytecollections.com/wp-content/plugins/woocommerce/assets/css/woocommerce-smallscreen.css?ver=11.1.0' media='only screen and (max-width: 768px)' />
<link rel='stylesheet' id='woocommerce-general-css' href='https://dlytecollections.com/wp-content/plugins/woocommerce/assets/css/woocommerce.css?ver=11.1.0' media='all' />
<style id="woocommerce-inline-inline-css">
.woocommerce form .form-row .required { visibility: visible; }
/*# sourceURL=woocommerce-inline-inline-css */
</style>
<link rel='stylesheet' id='woo-variation-swatches-css' href='https://dlytecollections.com/wp-content/plugins/woo-variation-swatches/assets/css/frontend.min.css?ver=2.4.0' media='all' />
<style id="woo-variation-swatches-inline-css">
:root {
--wvs-tick:url("data:image/svg+xml;utf8,%3Csvg filter='drop-shadow(0px 0px 2px rgb(0 0 0 / .8))' xmlns='http://www.w3.org/2000/svg'  viewBox='0 0 30 30'%3E%3Cpath fill='none' stroke='%23ffffff' stroke-linecap='round' stroke-linejoin='round' stroke-width='4' d='M4 16L11 23 27 7'/%3E%3C/svg%3E");

--wvs-cross:url("data:image/svg+xml;utf8,%3Csvg filter='drop-shadow(0px 0px 5px rgb(255 255 255 / .6))' xmlns='http://www.w3.org/2000/svg' width='72px' height='72px' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%23ff0000' stroke-linecap='round' stroke-width='0.6' d='M5 5L19 19M19 5L5 19'/%3E%3C/svg%3E");
--wvs-single-product-item-width:30px;
--wvs-single-product-item-height:30px;
--wvs-single-product-item-font-size:16px}
/*# sourceURL=woo-variation-swatches-inline-css */
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		                       Proof Of Labor: Что Это, Как Работает Алгоритм Консенсуса		                    </h1>
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						<span class="screen-reader-text">Posted on</span> <time class="entry-date published updated" datetime="2024-04-06T04:52:32+01:00">April 6, 2024</time>					</li>
				

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					<p>Добавляет ли ценности тот факт, что использование энергии биткоина более &#8220;взаимозаменяемо&#8221;? Точно так же верно и то, что Биткоин “отбирает” часть электроэнергии, созданной, к примеру, с помощью гидроэлектростанций. При этом, он стимулирует инновации в технологии преобразования энергии (см. недавние&nbsp;инициативы&nbsp;по использованию сжигаемого природного газа). Это не значит, что попытки сделать правовые системы более объективными бесполезны. Это вовсе не так — взгляните, к примеру, на концепцию&nbsp;судебной независимости&nbsp;, которая является чрезвычайно важным элементом цивилизации. Но, опять же, не забывайте <a href="https://www.xcritical.com/ru/blog/chto-takoe-proof-of-work-pow-kriptovalyuty/">proof of work это</a> обо &#8220;всем том доверии, необходимом для того, чтобы это сработало&#8221;.</p>
<p><img decoding="async" class='aligncenter' style='display: block;margin-left:auto;margin-right:auto;' width="607px" alt="proof of work это" src="https://i.pinimg.com/736x/fa/28/90/fa289022f9b868fa4e98e725da98d73f.jpg"/></p>
<p>Прежде чем перейти к Proof of Stake, я просто хотел уточнить, что, хотя приведенный выше пример похож на большинство моделей Proof of Work, некоторые блокчейны используют несколько иной процесс. С другой стороны, есть некоторые действительно популярные криптовалюты, которые сейчас используют Proof of Stake. Одним из них является Sprint, который позволяет пользователям отправлять и получать средства всего за пару секунд. Когда Сатоши Накамото создал первую в мире криптовалюту Биткоин, он должен был найти способ подтверждения транзакций без необходимости использования третьей стороны. В любом случае, в этой статье &#8220;Proof of Work против Proof of Stake&#8221;, я начну с объяснения основ каждой модели, и расскажу как топовые блокчейны адаптировали эти механизмы консенсуса.</p>
<p>PoS предлагает решение этих проблем, но все еще находится в процессе доказательства своей долгосрочной устойчивости и безопасности в масштабных проектах. Если валидатор попытается подтвердить недействительные транзакции или создать &#8220;двойную трату&#8221;, он потеряет часть или весь свой стейк. Это делает атаки экономически невыгодными из-за того, что потенциальные потери превышают возможную выгоду. Proof-of-Stake в свою очередь потребляет значительно меньше энергии, поскольку валидаторам не нужно выполнять ресурсоемкие вычисления. Это делает PoS более экологичным и экономически эффективным по сравнению с PoW. Это одна из старейших криптовалют, созданная вскоре после появления биткоина.</p>
<p>Роль консенсусных алгоритмов заключается в достижении уровня надежности сети, построенной на серии узлов (устройств, соединённых с другими устройствами как часть компьютерной сети). Это означает, что, если совершена транзакция, то алгоритм начнет работать &#8211; обмениваться данными по сети, чтобы проверить, может ли данное действие иметь место. У таинственного создателя возникла идея реализовать протокол доказательства работы в цифровой валюте, чтобы обеспечить децентрализованную <a href="https://www.xcritical.com/">https://www.xcritical.com/</a> защиту каждой транзакции, что было революцией. С другой стороны у Proof of Stake затраты на электроэнергию для проверки транзакций значительно ниже.</p>
<p>Чтобы начать добывать в сетях Proof-of-Work, майнеру необходимо приобрести специализированное оборудование (ASIC или GPU), настроить программное обеспечение для майнинга. После этого можно запустить добычу монет в любой момент, даже если у майнера изначально нет токенов. Процесс майнинга начинается с нуля, вознаграждение является основным источником дохода для майнеров. Proof-of-Work (PoW) является одним из самых широко используемых алгоритмов консенсуса в мире криптовалют. Многие популярные токены, включая самые первые и известные, работают на основе PoW. Рассмотрим некоторые примеры криптовалют, использующих алгоритм Proof-of-Work.</p>
<h2>Pow Против Pos: Что Лучше?</h2>
<p>Proof-of-Stake (PoS) рассматривается, по крайней мере Ethereum, как наследник трона блокчейна. PoS действует как гораздо более энергоэффективное и децентрализованное воплощение алгоритма консенсуса. Алгоритм автоматически <a href="https://www.youtube.com/watch?v=ld7BYRM9ta8">аппаратные крипто кошельки</a> предположит, что некоторые процессы и системы будут недоступны и что в результате этого некоторые коммуникации будут потеряны. Чтобы противостоять этому, консенсусный алгоритм должен быть отказоустойчивым и работать для достижения заранее определенного консенсуса или одобрения, по крайней мере, от большинства машин в сети. Доказательство работы направлено на обеспечение децентрализации сети. Вместо того, чтобы просто доверять ведение реестра третьей стороне, пользователи блокчейна доверяют протоколу и, следовательно, всей сети, чтобы гарантировать, что транзакции не будут подделаны.</p>
<h2>Что Такое Pow И Pos И Чем Они Отличаются? Что Лучше?</h2>
<p>Для достижения консенсуса в блокчейне существуют механизмы Proof of Work и Proof of Stake. Основными проблемами связанными с Proof of Work (механизмом консенсуса Биткоина) является количество потребляемой электроэнергии, власть централизованных пулов, а также угроза атаки 51%. Эфириум, также как Биткоин и многие другие популярные криптовалюты, использовал систему Proof of Work. Например, чтобы проверить транзакции для сети Sprint, вам потребуется купить и заморозить минимум a thousand монет Sprint. Во время рекордного максимума криптовалюты в декабре 2017 года, когда Dash достигал более $1,500 долларов за монету, это стоило бы в реальном эквиваленте $1,5 миллиона.</p>
<h2>Что Такое Proof Of Work (pow) Простыми Словами: Как Работает Алгоритм Pow</h2>
<ul>
<li>Но в 2021 году благодаря упоминаниям проекта Илоном Маском в X (ранее — Twitter) криптовалюта стала популярной.</li>
<li>Суть PoS в том, что подтверждение транзакции (разгадывание блока) происходит кошельком с данной монетой.</li>
<li>Суть Proof of Work заключается в самом названии алгоритма – «доказательство проделанной работы» – для добычи ценного ограниченного ресурса нужно совершить сложное, но посильное действие.</li>
<li>Они предназначены для использования преимуществ PoW в плане безопасности, а также для снижения энергопотребления и улучшения масштабируемости за счет использования PoS.</li>
</ul>
<p>Если вы прочитали до конца, то у вас должно быть хорошее понимание того, как работает каждый механизм консенсуса и чем они отличаются друг от друга. Их мотивация заключается в том, что они получают за это награду в виде новых Биткоинов, которые генерируются благодаря правила протокола. Тысячи отдельных устройств соревнуются за то, чтобы первыми решить криптографический алгоритм.</p>
<p><img decoding="async" class='aligncenter' style='display: block;margin-left:auto;margin-right:auto;' width="608px" alt="proof of work это" src="https://i.ytimg.com/vi/YnaNHPY9JFw/mqdefault.jpg"/></p>
<p>Каждый узел в сети имеет полную копию блокчейна, для внесения изменений в данные требуется согласие большинства узлов. PoW является одним из самых популярных алгоритмов консенсуса, наряду с Proof-of-Stake (PoS). Основная идея PoS заключается в выборе валидаторов на основе их доли в сети для проверки блоков транзакций. Proof-of-Work — это механизм достижения консенсуса с доказательством проделанной работы. Под ней подразумевается майнинг — выполнение математических вычислений для создания новых блоков.</p>
<p><img decoding="async" class='aligncenter' style='display: block;margin-left:auto;margin-right:auto;' width="602px" alt="proof of work это" src="https://cryptodose.net/wp-content/uploads/2023/08/proof_of_history.jpg"/></p>
<p>В целом, хотя PoW остается эффективным механизмом для обеспечения безопасности и эмиссии новых монет в некоторых криптовалютах (например, Bitcoin), многие проекты ищут альтернативы из-за его недостатков. Это вторая по величине криптовалюта после биткоина, которая изначально использовала алгоритм Proof-of-Work для обеспечения безопасности и достижения консенсуса в сети. Однако в сентябре 2022 года проект Ethereum успешно перешел на механизм Proof-of-Stake (PoS) в рамках масштабного обновления, известного как &#8220;The Merge&#8221;.</p>
<p>Несмотря на свои преимущества, PoW подвергается критике, в основном из-за высокого энергопопотребления. Это привело к появлению альтернативных алгоритмов консенсуса, таких как Proof-of-Stake (PoS), который используется в Ethereum после перехода The Merge. Идея, лежащая в основе Proof-of-Work, была впервые описана в статье «Pricing by way of Processing or Combatting Junk Mail» в 1993 году. Авторы Cynthia Dwork и Moni Naor предложили механизм, использующий вычислительную работу для предотвращения спама.</p>
<p>С каждым новым блоком задача усложняется, и атакующему становится всё труднее изменить историю транзакций. Это когда кто-то переводит средства кому-то другому, но до подтверждения транзакции ему удается снова потратить те же самые средства. При нормальных условиях такая попытка будет предотвращена, когда все другие майнеры в сети увидят ее. Кроме того, поскольку Proof of Work позволяет устройствам работать только на одной цепочке, сомнительная цепочка будет просто отклонена. Однако это практически ничем не отличается от механизма консенсуса Proof of Work, благодаря которому богатые майнеры могут просто приобрести тысячи устройств ASIC.</p>

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