1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb41c34fa08e95d98eccf72434f25d8b26bd9d8803a6b90162fadf496c2e5bdc8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/822dd57e-6a76-4f20-9511-0f1e56b35715.json and https://artists.proofprofile.net/proofs/artist/822dd57e-6a76-4f20-9511-0f1e56b35715.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179ddfd12cbb605ecc62542c7340be16f3c4c4ddb1b07085711b68280ef768a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1P4uTaBW7IOdrOA3INU9lO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1P4uTaBW7IOdrOA3INU9lO.
{"copyright_id":"0x61686b8b67b5b7b96528d855e58c0acb7eca18604e6d346551c8aba7e4c54d1e","isrc":"QMKHM2100017","name":"Holier Than Thou","registered_at":"2026-06-24T08:33:08Z","spotify_id":"5JoQKrUVslQ3Gb5YYbxjQK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61686b8b67b5b7b96528d855e58c0acb7eca18604e6d346551c8aba7e4c54d1e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JoQKrUVslQ3Gb5YYbxjQK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5JoQKrUVslQ3Gb5YYbxjQK.
{"copyright_id":"0x61686b8b67b5b7b96528d855e58c0acb7eca18604e6d346551c8aba7e4c54d1e","isrc":"QMKHM2100017","name":"Holier Than Thou","registered_at":"2026-06-24T08:33:08Z","spotify_id":"5bRBK3x59fqRbEWDKP2Ely","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61686b8b67b5b7b96528d855e58c0acb7eca18604e6d346551c8aba7e4c54d1e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5bRBK3x59fqRbEWDKP2Ely.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5bRBK3x59fqRbEWDKP2Ely.
{"copyright_id":"0x61686b8b67b5b7b96528d855e58c0acb7eca18604e6d346551c8aba7e4c54d1e","isrc":"QMKHM2100017","name":"Holier Than Thou","registered_at":"2026-06-24T08:33:08Z","spotify_id":"6oTdu7srCDHkfGyRgihuns","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61686b8b67b5b7b96528d855e58c0acb7eca18604e6d346551c8aba7e4c54d1e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6oTdu7srCDHkfGyRgihuns.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6oTdu7srCDHkfGyRgihuns.
The Music of Grand Theft Auto V, Vol. 1: Original Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4e0b0ec6e7d9c81532a7f0b12454e4ba176070b198ffd0419152f5d49e3c5c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ptHmuZsP4eBgHEWqNejKi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ptHmuZsP4eBgHEWqNejKi.