{"copyright_id":"0xed37ceca980a903809dbdae4dbfc0c5aea4cd1b6fd2d55eeb29c7468b17a1acf","name":"Chorvereinigung Heimat","registered_at":"2026-06-15T22:44:33Z","symbol":"NIM0855347","token_address":"0xdab57e74b43f8377bc7f5ca02e39b7eb959274d5","type":"artist","uuid":"1a4f8a50-f115-4f68-98af-e57ddea9e9a5"}
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 0xed37ceca980a903809dbdae4dbfc0c5aea4cd1b6fd2d55eeb29c7468b17a1acf. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a4f8a50-f115-4f68-98af-e57ddea9e9a5.json and https://artists.proofprofile.net/proofs/artist/1a4f8a50-f115-4f68-98af-e57ddea9e9a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).