{"copyright_id":"0x743c9cdc4177a00c42b0b63fdcd6d18fb5916f2ed11beaa9a1b1e75bbc34a55a","name":"Somos Uno Sound System","registered_at":"2026-06-20T16:08:44Z","symbol":"NIM1651359","token_address":"0x2f762ab64d03e436faa98766cab9c2a7cf5ba2bc","type":"artist","uuid":"b93038eb-ae2b-4ba7-afe8-c8d9aaad039d"}
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 0x743c9cdc4177a00c42b0b63fdcd6d18fb5916f2ed11beaa9a1b1e75bbc34a55a. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b93038eb-ae2b-4ba7-afe8-c8d9aaad039d.json and https://artists.proofprofile.net/proofs/artist/b93038eb-ae2b-4ba7-afe8-c8d9aaad039d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).