Changes for page Federation & Decentralization

Last modified by Robert Schaub on 2025/12/24 20:33

From 2.1 to 3.1 From 7.3 to 7.4

From version 3.1

edited by Robert Schaub
on 2025/12/12 09:32

Change comment: Imported from XAR

To version 7.3

edited by Robert Schaub
on 2025/12/16 20:27

Change comment: Update document after refactoring.

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--FactHarbor.Specification.WebHome
++FactHarbor.Archive.FactHarbor V0\.9\.18.Specification.WebHome

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  = Federation & Decentralization =
--FactHarbor is designed as a network of independent nodes rather than a single centralized service.
--This provides resilience, local autonomy, and virtually unlimited scalability.
++FactHarbor is designed to operate as a **federated network of nodes** rather than a single central server.
--== Purpose of Federation ==
++Decentralization provides:
++* **Resilience** against censorship or political pressure
++* **Autonomy** for local governance and moderation
++* **Scalability** across many independent communities
++* **Trust** without centralized control
++* **Domain specialization** (health-focused nodes, energy-focused nodes, etc.)
--* **Resilience**: Against censorship or political pressure.
--* **Autonomy**: Local governance and moderation.
--* **Scalability**: Adding more nodes, not bigger servers.
--* **Shared Knowledge**: Distributed structures without central authority.
--* **Specialization**: Domain-specific nodes (e.g., Health, Climate).
++FactHarbor draws inspiration from the Fediverse but uses stronger structure, versioning, and integrity guarantees.
--== Federated Node Model ==
++----
--Each FactHarbor node maintains:
--* Local PostgreSQL database, Vector DB, and Object Storage.
--* Local AKEL instance.
--* Local Reviewers and Governance policies.
++== Federated FactHarbor Nodes ==
--Nodes exchange structured objects (Claims, Scenarios, Evidence metadata, Verdicts) via signed bundles.
++Each FactHarbor instance ("node") maintains:
++* Its own database
++* Its own AKEL instance
++* Its own reviewers, experts, and contributors
++* Its own governance rules
++Nodes exchange structured information:
++* Claims
++* Scenarios
++* Evidence metadata (not necessarily full files)
++* Verdicts (optional)
++* Hashes and signatures for integrity
++
++Nodes choose which external nodes they trust.
++
++----
++
  == Global Identifiers ==
--Format: ``factharbor://<node>/<type>/<local_id>``
++Every entity receives a globally unique, linkable identifier.
--Example: ``factharbor://factharbor.energy/claim/CLM-55812``
++**Format**:
++`factharbor://node_url/type/local_id`
--Identifiers are globally consistent, human-readable, and hash-derived.
++**Example**:
++`factharbor://factharbor.energy/claim/CLM-55812`
--== Data Sharing Model ==
++**Supported types**:
++* `claim`
++* `scenario`
++* `evidence`
++* `verdict`
++* `user` (optional)
++* `cluster`
--* **Shared**: Claims, Scenario structures, Evidence metadata, Verdicts, Integrity hashes.
--* **Not Shared**: Local users, Review discussions, Internal notes, Private evidence.
++**Properties**:
++* Globally consistent
++* Human-readable
++* Hash-derived
++* Independent of database internals
++* URL-resolvable (future enhancement)
++This allows cross-node references and prevents identifier collisions in federated environments.
++
++----
++
  == Trust Model ==
--Nodes maintain a **trust table** (Trusted, Neutral, Untrusted). This influences auto-import rules, re-review requirements, and visibility.
++Each node maintains a **trust table** defining relationships with other nodes:
--== Decentralized Processing ==
++=== Trust Levels ===
--Each node performs its own AKEL processing, drafting, and verdict calculation. Nodes may specialize in specific domains (e.g., Medical Node).
++**Trusted Nodes**:
++* Claims auto-imported
++* Scenarios accepted without re-review
++* Evidence considered valid
++* Verdicts displayed to users
++* High synchronization priority
++**Neutral Nodes**:
++* Claims imported but flagged for review
++* Scenarios require local validation
++* Evidence requires re-assessment
++* Verdicts shown with "external node" disclaimer
++* Normal synchronization priority
++
++**Untrusted Nodes**:
++* Claims quarantined, manual import only
++* Scenarios rejected by default
++* Evidence not accepted
++* Verdicts not displayed
++* No automatic synchronization
++
++=== Trust Affects ===
++
++* **Auto-import**: Whether claims/scenarios are automatically added
++* **Re-review requirements**: Whether local reviewers must validate
++* **Verdict display**: Whether external verdicts are shown to users
++* **Synchronization frequency**: How often data is exchanged
++* **Reputation signals**: How external reputation is interpreted
++
++=== Local Trust Authority ===
++
++Each node's governance team decides:
++* Which nodes to trust
++* Trust level criteria
++* Trust escalation/degradation rules
++* Dispute resolution with partner nodes
++
++Trust is **local and autonomous** - no global trust registry exists.
++
++----
++
++== Data Sharing Model ==
++
++=== What Nodes Share ===
++
++**Always shared** (if federation enabled):
++* Claims and claim clusters
++* Scenario structures
++* Evidence metadata and content hashes
++* Integrity signatures
++
++**Optionally shared**:
++* Full evidence files (large documents)
++* Verdicts (nodes may choose to keep verdicts local)
++* Vector embeddings
++* Scenario templates
++* AKEL distilled knowledge
++
++**Never shared**:
++* Internal user lists
++* Reviewer comments and internal discussions
++* Governance decisions and meeting notes
++* Access control data
++* Private or sensitive content marked as local-only
++
++=== Large Evidence Files ===
++
++Evidence files are:
++* Stored locally by default
++* Referenced via global content hash
++* Optionally served through IPFS
++* Accessible via direct peer-to-peer transfer
++* Can be stored in S3-compatible object storage
++
++----
++
  == Synchronization Protocol ==
--Nodes exchange **Version Bundles** containing:
--* Claims, Scenarios, Metadata.
--* Merkle-tree lineage.
--* Cryptographic signatures.
++Nodes exchange data using multiple synchronization methods:
--Methods: Push (Webhook), Pull (Cron), Subscription.
++=== Push-Based Synchronization ===
--== Scaling ==
++**Mechanism**: Webhooks
--* **Vertical**: API servers, Workers, Caching.
--* **Horizontal**: Adding more nodes to the federation.
++When local content changes:
++1. Node builds signed bundle
++2. Sends webhook notification to subscribed nodes
++3. Remote nodes fetch bundle
++4. Remote nodes validate and import
--{{include reference="FactHarbor.Specification.Diagrams.Federation Architecture.WebHome"/}}
++**Use case**: Real-time updates for trusted partners
++
++=== Pull-Based Synchronization ===
++
++**Mechanism**: Scheduled polling
++
++Nodes periodically:
++1. Query partner nodes for updates
++2. Fetch changed entities since last sync
++3. Validate and import
++4. Store sync checkpoint
++
++**Use case**: Regular batch updates, lower trust nodes
++
++=== Subscription-Based Synchronization ===
++
++**Mechanism**: WebSub-like protocol
++
++Nodes subscribe to:
++* Specific claim clusters
++* Specific domains (medical, energy, etc.)
++* Specific scenario types
++* Verdict updates
++
++Publisher pushes updates only to subscribers.
++
++**Use case**: Selective federation, domain specialization
++
++=== Large Asset Transfer ===
++
++For files >10MB:
++* S3-compatible object storage
++* IPFS (content-addressed)
++* Direct peer-to-peer transfer
++* Chunked HTTP transfer with resume support
++
++----
++
++== Federation Sync Workflow ==
++
++Complete synchronization sequence for creating and sharing new content:
++
++=== Step 1: Local Node Creates New Versions ===
++
++User or AKEL creates:
++* New claim version
++* New scenario version
++* New evidence version
++* New verdict version
++
++All changes tracked with:
++* VersionID
++* ParentVersionID
++* AuthorType
++* Timestamp
++* JustificationText
++
++=== Step 2: Federation Layer Builds Signed Bundle ===
++
++Federation layer packages:
++* Entity data (claim, scenario, evidence metadata, verdict)
++* Version lineage (ParentVersionID chain)
++* Cryptographic signatures
++* Node provenance information
++* Trust metadata
++
++Bundle format:
++* JSON-LD for structured data
++* Content-addressed hashes
++* Digital signatures for integrity
++
++=== Step 3: Bundle Includes Required Data ===
++
++Each bundle contains:
++* **Claims**: Full claim text, classification, domain
++* **Scenarios**: Definitions, assumptions, boundaries
++* **Evidence metadata**: Source URLs, hashes, reliability scores (not always full files)
++* **Verdicts**: Likelihood ranges, uncertainty, reasoning chains
++* **Lineage**: Version history, parent relationships
++* **Signatures**: Cryptographic proof of origin
++
++=== Step 4: Bundle Pushed to Trusted Neighbor Nodes ===
++
++Based on trust table:
++* Push to **trusted nodes** immediately
++* Queue for **neutral nodes** (batched)
++* Skip **untrusted nodes**
++
++Push methods:
++* Webhook notification
++* Direct API call
++* Pub/Sub message queue
++
++=== Step 5: Remote Nodes Validate Lineage and Signatures ===
++
++Receiving node:
++1. Verifies cryptographic signatures
++2. Validates version lineage (ParentVersionID chain)
++3. Checks for conflicts with local data
++4. Validates data structure and required fields
++5. Applies local trust policies
++
++Validation failures → reject or quarantine bundle
++
++=== Step 6: Accept or Branch Versions ===
++
++**Accept** (if validation passes):
++* Import new versions
++* Maintain provenance metadata
++* Link to local related entities
++* Update local indices
++
++**Branch** (if conflict detected):
++* Create parallel version tree
++* Mark as "external branch"
++* Allow local reviewers to merge or reject
++* Preserve both version histories
++
++**Reject** (if validation fails):
++* Log rejection reason
++* Notify source node (optional)
++* Quarantine for manual review (optional)
++
++=== Step 7: Local Re-evaluation Runs if Required ===
++
++After import, local node checks:
++* Does new evidence affect existing verdicts?
++* Do new scenarios require re-assessment?
++* Are there contradictions with local content?
++
++If yes:
++* Trigger AKEL re-evaluation
++* Queue for reviewer attention
++* Update affected verdicts
++* Notify users following related content
++
++----
++
++== Cross-Node AI Knowledge Exchange ==
++
++Each node runs its own AKEL instance and may exchange AI-derived knowledge:
++
++=== What Can Be Shared ===
++
++**Vector embeddings**:
++* For cross-node claim clustering
++* For semantic search alignment
++* Never includes training data
++
++**Canonical claim forms**:
++* Normalized claim text
++* Standard phrasing templates
++* Domain-specific formulations
++
++**Scenario templates**:
++* Reusable scenario structures
++* Common assumption patterns
++* Evaluation method templates
++
++**Contradiction alerts**:
++* Detected conflicts between claims
++* Evidence conflicts across nodes
++* Scenario incompatibilities
++
++**Metadata and insights**:
++* Aggregate quality metrics
++* Reliability signal extraction
++* Bubble detection patterns
++
++=== What Can NEVER Be Shared ===
++
++**Model weights**: No sharing of trained model parameters
++
++**Training data**: No sharing of full training datasets
++
++**Local governance overrides**: AKEL suggestions can be overridden locally
++
++**User behavior data**: No cross-node tracking
++
++**Internal review discussions**: Private content stays private
++
++=== Benefits of AI Knowledge Exchange ===
++
++* Reduced duplication across nodes
++* Improved claim clustering accuracy
++* Faster contradiction detection
++* Shared scenario libraries
++* Cross-node quality improvements
++
++=== Local Control Maintained ===
++
++* Nodes accept or reject shared AI knowledge
++* Human reviewers can override any AKEL suggestion
++* Local governance always has final authority
++* No external AI control over local content
++* Privacy-preserving knowledge exchange
++
++----
++
++== Decentralized Processing ==
++
++Each node independently performs:
++* AKEL processing
++* Scenario drafting and validation
++* Evidence review
++* Verdict calculation
++* Truth landscape summarization
++
++Nodes can specialize:
++* Health-focused node with medical experts
++* Energy-focused node with domain knowledge
++* Small node delegating scenario libraries to partners
++* Regional node with language/culture specialization
++
++Optional data sharing includes:
++* Embeddings for clustering
++* Claim clusters for alignment
++* Scenario templates for efficiency
++* Verdict comparison metadata
++
++----
++
++== Scaling to Thousands of Users ==
++
++Nodes scale independently through:
++* Horizontally scalable API servers
++* Worker pools for AKEL tasks
++* Hybrid storage (local + S3/IPFS)
++* Redis caching for performance
++* Sharded or partitioned databases
++
++Federation allows effectively unlimited horizontal scaling by adding new nodes.
++
++Communities may form:
++* Domain-specific nodes (epidemiology, energy, climate)
++* Language or region-based nodes
++* NGO or institutional nodes
++* Private organizational nodes
++* Academic research nodes
++
++Nodes cooperate through:
++* Scenario library sharing
++* Shared or overlapping claim clusters
++* Expert delegation between nodes
++* Distributed AKEL task support
++* Cross-node quality audits
++
++----
++
++== Federation and Release 1.0 ==
++
++**POC**: Single node, optional federation experiments
++
++**Beta 0**: 2-3 nodes, basic federation protocol
++
++**Release 1.0**: Full federation support with:
++* Robust synchronization protocol
++* Trust model implementation
++* Cross-node AI knowledge exchange
++* Federated search and discovery
++* Distributed audit collaboration
++* Inter-node expert consultation
++
++----
++
++== Related Pages ==
++
++* [[AKEL (AI Knowledge Extraction Layer)>>FactHarbor.Specification.AI Knowledge Extraction Layer (AKEL).WebHome]]
++* [[Data Model>>FactHarbor.Specification.Data Model.WebHome]]
++* [[Architecture>>FactHarbor.Specification.Architecture.WebHome]]
++* [[Workflows>>FactHarbor.Specification.Workflows.WebHome]]
++

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