causal-seal/causal-seal-pilot

Causal Seal — reference pilot

An illustrative, self-contained snapshot showing the full chain a third party can follow without knowing the implementation that emitted it:

exact commit SHA
    -> download / verify this snapshot
    -> open the STS trace (trace.jsonl)
    -> follow `causal_seal_ref` -> seal.json
    -> install / run the published verifier

Files

file	role
manifest.json	entry point: what maps to what, sha256 per file. Git provides snapshot integrity; the manifest is not a second integrity system.
trace.jsonl	STS-format session trace. The session header carries causal_seal_ref, causal_seal_profile, output_sha256 (extra metadata the STS renderer ignores).
seal.json	the Causal Seal (causal-seal/1.0): binds the output hash + governing state + emission time into a fingerprint.
causal-profile.json	the parameter dictionary: meaning, domain and authority (observed / asserted / derived / attested) of each governing-state field. The seal commits to this file by content hash (dictionary).

Verify it yourself

The reference verifier is published as a package (not shipped inside this snapshot):

pip install causal-seal

causal-seal verify seal.json --output-text "Helsinki is the capital of Finland."

Reference implementation & spec: https://github.com/causal-seal/causal-seal-spec

Snapshot integrity (Hugging Face CLI), against an exact commit:

hf cache verify <repo-id> --repo-type dataset --revision <full-commit-sha> \
  --fail-on-missing-files --fail-on-extra-files

What this pilot deliberately does NOT claim

• model_revision is honestly marked alias-only (no immutable revision was exposed).
• The seal proves (a) the record is internally consistent with its fingerprint. It does not, by itself, prove (b) the referenced output is present/authentic, nor completeness/ordering of a set of seals — those belong to output retrieval and to an external transparency/log layer.
• engine.model here is asserted (see causal-profile.json authority).

Self-verify at build time: True — seal verified (Level 1 + output binding)