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 0x96c487a2a4b96370869c4d5d8fdadb778930cd599306eebeae4c46edf41211c1. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0982faa-17a9-4884-8ef1-04f29e190629.json and https://artists.proofprofile.net/proofs/artist/b0982faa-17a9-4884-8ef1-04f29e190629.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DJ DEK TALAMPAU HAROK BANANG KUSUIK DEN HELO JUO DEK IYO JUO
DJ ANTAH KOK TUNGKEK NAN MAMBAOK RABAH TONGGAK TUO NAMPAK
DJ MINANG DEN CUBO PAI MARANTAU BREAKBEAT
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7842895912408455098c09caef2432f679d0ed7cc95bc308d02315d992dae7ed. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:05:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKC371805409.