Transparency log

A public chain that cannot be quietly rewritten.

Each line carries the hash of the line before it, and the head is signed by the registry. Your browser is recomputing every hash from genesis right now.

Checks

Live from registry

Hash chainPasson your device

Head signaturePasson your device

Try tampering

Rewrite entry #1 with a different event and recompute its hash.

Signed head

Size: 1
Hash: be1b51acbac192ccb5acb1f886040c773b5e0dbf774a2dcd2db909c7543a2a0c
Signed at: 1 Nov 2026, 03:30
Key: did:web:registry.brainsait.de#key-1
Rule: hash = sha256(line); line.prev = previous hash; line.seq = 1..n

The chain

0genesis000000…0000
1issuedSA-PHY-00000324 Oct 2026, 20:43prev 0000…0000hash be1b51…2a0c
✎signed headbe1b51…2a0csignature valid