{"copyright_id":"0xbf135f0e88dac18c60bb2965a746fd7d8bcbfed4337bfed25286eb8d4defa283","name":"Dance Hit Masters","registered_at":"2026-06-21T04:41:36Z","symbol":"NIM1823177","token_address":"0xb6c29e3fe72ff0c0acfefed82daf035b2b7dbc01","type":"artist","uuid":"db57ee17-456f-4432-b5a9-a398f227c0dd"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf135f0e88dac18c60bb2965a746fd7d8bcbfed4337bfed25286eb8d4defa283. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db57ee17-456f-4432-b5a9-a398f227c0dd.json and https://artists.proofprofile.net/proofs/artist/db57ee17-456f-4432-b5a9-a398f227c0dd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.