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Check that a manifest or timeline entry is byte-for-byte what was hashed when it was published. All computation happens in your browser.

Timeline entry

Garden #2 is planted

Project
Snailmail Bridge
Schema
vpn.event/1
Published
Oct 23, 2026, 12:00 PM UTC
Hash
daddd07f…a82b1a
Anchored
No
{"actor_user_id":"5f25c448-cbbc-464b-a7b2-a54c7cad72e5","body":"The second relay garden has soil, lettuce and a small sign. Snails arrive next week, at their own pace.","corrects_event_id":null,"event_type":"update","id":"5c5acc39-3c67-4564-8a0f-b259d19ad5e4","metadata":{},"project_id":"2d9b63f0-86fc-49da-821b-256064156c7d","provenance":"team_reported","published_at":"2026-10-23T12:00:00.000Z","schema":"vpn.event/1","source":{"created_at":null,"reference":null,"type":"manual","url":null},"title":"Garden #2 is planted"}

Check any record

Fetch a record from the public API — e.g. /api/v1/projects/<id-or-slug>/manifests/<version> or /api/v1/events/<id> — then paste it with its hash below. Or use your own tooling: the format is RFC 8785 canonical JSON hashed with SHA-256.

What a matching hash proves — and what it does not

  • It proves integrity: the record has not changed since it was hashed and stored.
  • It does not prove truth: a team-reported claim stays a claim. Check its provenance and evidence.
  • Anchored records do not depend on this platform: registered projects commit hashes to the Provenant registry (0xb4a2b3949e21406fd7a13752f717785c01cdc507 on Bot Testnet). Read getManifest or getProjectEvent from the contract and compare with 0x + the SHA-256 above. Records that are not anchored are only as trustworthy as this platform.

Specification: canonical serialization & hashing.