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 0x5b302fe64420b53e0fe950d4e8989295edd5470950bb393f01719a2d60b008c1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c596d315-0f31-446e-86fc-d1baa55ea30a.json and https://artists.proofprofile.net/proofs/artist/c596d315-0f31-446e-86fc-d1baa55ea30a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Talk Too Much (feat. Mac Moo & Kuddy Kuz)
{"copyright_id":"0x76d66e7ea2ee8f77b68ab45d07f1908242ab5eb2780243c0e8af49885c5bd7ec","isrc":"QM24S2402044","name":"Zombie Mode (Bar Wars Cypher #12)","registered_at":"2026-06-23T13:49:40Z","spotify_id":"4wR1yifTuhXf3EoJz6HVy7","type":"track"}
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 0x76d66e7ea2ee8f77b68ab45d07f1908242ab5eb2780243c0e8af49885c5bd7ec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4wR1yifTuhXf3EoJz6HVy7.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/4wR1yifTuhXf3EoJz6HVy7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88973b7446dcb672a5f50f0a623917e6e03d0ca7d8e69a677cfe1ef877d15264. 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/4SgdjWIBDb6r1TwCZZfbXH.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/4SgdjWIBDb6r1TwCZZfbXH.