Account-free local tool
Release Book Verifier
Paste an offline Release Book package. Verification runs in this browser with Web Crypto; the bundle is not sent to Reshot.
Offline package JSON
Verify exact bytes and signature
No upload occurs. Network access is used only when you choose “Load example.”
Verification result
Waiting for a package
Contract and canonical sections—
Release Book content hash—
Item hashes and unique identities—
Public-key fingerprint—
Ed25519 signature—
Cryptographic validity proves integrity under the included key. Trust still requires an independently trusted key identity and review of what the Release Book claims.
Open contract
Canonical JSON, SHA-256, and Ed25519
The verifier checks the exact canonical section order, each item hash, the complete body hash, the SHA-256 fingerprint of the included SPKI public key, and the Ed25519 signature over the Release Book domain plus content hash. It never converts cryptographic validity into release approval.