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 0xa986b36c9c222375b4eef382db1829f6da37745c9c6933a33e8335e9b084cfcf. 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/c191554a-4257-44f6-92a7-840644bc8a1d.json and https://artists.proofprofile.net/proofs/artist/c191554a-4257-44f6-92a7-840644bc8a1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xdd33c18354f8658d7075cf11cc4c9a4c6bad4e69c33ad631039ccdf4762f8df5","isrc":"TCAGN2240471","name":"En Tu Huerto, En Tu Viña (En Vivo)","registered_at":"2026-06-28T19:44:19Z","spotify_id":"3Z8qGa3OtIKz8x6Zu4yRhH","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 0xdd33c18354f8658d7075cf11cc4c9a4c6bad4e69c33ad631039ccdf4762f8df5. 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/3Z8qGa3OtIKz8x6Zu4yRhH.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/3Z8qGa3OtIKz8x6Zu4yRhH.
Por Tu Presencia Todo Lo Daría (En Vivo)
{"copyright_id":"0x6ea7bef1c5e03f8a8b4f5d313e07d80df16e1900f2498974dc8604c8257c5a2c","isrc":"QZGLS2326128","name":"Trae Avivamiento","registered_at":"2026-06-20T11:49:14Z","spotify_id":"66hMr7TTKuQRgPKlISPOZ7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea7bef1c5e03f8a8b4f5d313e07d80df16e1900f2498974dc8604c8257c5a2c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/66hMr7TTKuQRgPKlISPOZ7.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/66hMr7TTKuQRgPKlISPOZ7.