Paste the cryptographic values from a Bedrock certificate to prove the record is authentic and untampered — without trusting Bedrock's API. All checks run in your browser.
Each Bedrock ledger record is cryptographically linked to every record before it. Changing any single value — past or present — breaks the entire chain from that point forward.
Document hash
SHA-256 of the original advice document PDF. Any change to the file produces a completely different hash.
Record hash
SHA-256 of all record metadata — event type, actor, timestamp, document hash, and more. A fingerprint of everything about this event.
Chain hash
SHA-256(recordHash + previousHash). This links each record to the one before it. The first record uses a genesis hash of all zeros.
Signature
Ed25519 signature of the chain hash, signed by Bedrock's private key at the time of recording. Proves the record was created by Bedrock and has not been altered.
All verification runs entirely in your browser using the Web Crypto API. No data leaves your device.