TIBET: Transaction/Interaction-Based Evidence Trail

This document defines TIBET (Transaction/Interaction-Based Evidence Trail), a data model and protocol for constructing cryptographically linked provenance chains over interactions between autonomous agents, human actors, and automated processes. A TIBET token captures four dimensions of provenance: content (ERIN), references (ERAAN), context (EROMHEEN), and intent (ERACHTER). Tokens are cryptographically signed, hash-chained, and designed for append-only storage. TIBET is transport-agnostic and encoding-flexible, with JSON over HTTPS as the baseline serialization. This document specifies the token data model, chain semantics, canonicalization rules, verification procedures, and integration points with companion protocols JIS [JIS], UPIP [UPIP], RVP [RVP], and AINS [AINS].