CAIN-42 invariant · E24

NET-I063: the evidence log is hash-chained and tamper-evident

Held · CAIN-42 Evolution 24 -- Governed Agentic Internet Fabric

Last reviewed 2026-10-01

held   niche Attacks, threats & containment

What this rule means

CAIN-42 must always satisfy: the evidence log is hash-chained and tamper-evident. It is one of 298 invariants checked for CAIN-42 Evolution 24 -- Governed Agentic Internet Fabric. An invariant is a rule the system may never break, whatever an agent or attacker does; the test suite tries to break it across many scenarios and records the result.

Recorded detail

tamper detected

Verify it in your browser

Your browser downloads the bundle's SHA256SUMS manifest and the file(s) behind this page, hashes them with SHA-256 locally (WebCrypto), and compares. A match shows the record you are reading is the published one; it does not by itself prove who published it (see the signed claims registry and the bundle verifier for that).

Check it yourself

Browse the raw bundle · SHA-256 manifest

Related rules

• NET-I020: quarantined agent cannot regain authority without reattestation
• NET-I021: agent compromise cannot automatically compromise every peer
• NET-I022: incident propagation must preserve unrelated trust domains
• NET-I023: quarantine cannot erase evidence
• NET-I024: recovery cannot erase incident history
• NET-I048: a forged discovery advertisement is refused
• NET-Q-active: quarantine state ACTIVE never raises authority
• NET-Q-restricted: quarantine state RESTRICTED never raises authority

← NET-I062 · all 298 · NET-I064 →