Closepacks

A closepack is a portable verification bundle proving settlement lineage without relying on live server trust.

What you can prove with a closepack

• artifact integrity and signatures

• agreement/evidence/decision bindings

• dispute lineage correctness

• deterministic adjustment routing expectations

• replay comparison consistency

Export

npx settld closepack export --agreement-hash <agreementHash> --out closepack.zip

Repo checkout:

./bin/settld.js closepack export --agreement-hash <agreementHash> --out closepack.zip

Verify

npx settld closepack verify closepack.zip --json-out /tmp/closepack-verify.json

Repo checkout:

./bin/settld.js closepack verify closepack.zip --json-out /tmp/closepack-verify.json

Operational policy recommendation

For every production release candidate:

1. Generate at least one representative closepack.

2. Verify it offline.

3. Store verify JSON with release artifacts.

Why this matters

Closepacks shift trust from “believe the API response” to “independently verify the economic claim.”

That is a core credibility boundary for settlement infrastructure.

Related references

• docs/spec/ClosePack.v1.md

• docs/spec/ClosePackManifest.v1.md

• docs/spec/INVARIANTS.md