Venice is a city in northeastern Italy and the capital of the region of Veneto. It is built on a group of 126 islands that are separated by expanses of open water and by canals; portions of the city a
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941e7c2dfb37d6a073d27fe716708cfc6db59c7b9aaa539145301daf924c9975. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04b491b8-9e10-4b68-950d-62f67c1bed20.json and https://artists.proofprofile.net/proofs/artist/04b491b8-9e10-4b68-950d-62f67c1bed20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).