CTP/0: Cognitive Time Protocol -- Definition and Framework

This document describes CTP/0, the definition layer of the Cognitive Time Protocol (CTP) family. CTP/0 is a conceptual reference framework for representing, comparing, and referencing time-related claims in AI and agent systems. It defines terminology for cognitive events, event-density claims, ordering claims, branching claims, and declared emergent temporal-structure claims. CTP/0 does not define a wire protocol, message format, signature format, hash-chain format, governance process, physical theory of time, theory of consciousness, or legal accountability framework. Where verifiable records are needed, CTP-compatible claims can be bound to external event or receipt infrastructure such as JEP, HJS, JAC, COE, or CEP. This revision narrows the original CTP/0 draft to an informational framework. Metrics such as Cognitive Event Density (CED), Causal Arrow Entropy (CAE), Verifiable Delay Function (VDF) evidence, and time-related evidence chains are treated as optional claim or evidence profiles, not as universal measures of intelligence, cognition, truth, safety, or responsibility.