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Alethea Protocol

Changelog

Spec versions and timeline.

Each version of the AletheaSignature spec is published with breaking-change notes, RFC references, and reference implementations.

v0.1 draftCurrent2026-05-27
  • Initial public draft of the AletheaSignature specification
  • Core data model: AletheaSignature JSON-LD canonical form
  • Identity bound via eIDAS substantial/high, NIST 800-63 IAL2/IAL3, ISO 29115 L3/L4
  • Five signing roles: author, actor, witness, broadcaster, reclaim
  • Content fingerprints: SHA-256, pHash, Chromaprint
  • contextHash field for off-chain document binding
  • Chain-agnostic registry profiles: Polygon, Base, Ethereum, Solana
  • Verifier conformity statement at /.well-known/alethea-verifier.json
  • Robustness matrix and detection thresholds
  • Security Considerations section
v0.2PlannedQ3 2026
  • Post-quantum migration path (ML-DSA / Dilithium, Falcon)
  • segmentsIndexHash field for very large content
  • Refined verifier conformity profiles: basic, advanced, full
  • Multi-role single-content signing (author + witness in one transaction)
v1.0ConditionsNo fixed date
  • Three independent reference implementations
  • At least one production verifier from a regulated industry (media, banking, government)
  • One peer-reviewed security analysis
  • One full audit of the spec by an external standards body