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 0x44801702afcf9604e8c143ecc0bb3e177b5290ed747f57d25b4794ba79dd9f61. 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/cecb54b4-3e08-42d2-8305-ebed6caf0038.json and https://artists.proofprofile.net/proofs/artist/cecb54b4-3e08-42d2-8305-ebed6caf0038.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
À l'ombre des mots (Avec la voix de Mahmoud Darwich)
Départ De La Colonne - Bof Le Dernier Vol
Antoine, Amana, Marie - Bof Le Dernier Vol
Requiem Pour Lancaster - Bof Le Dernier Vol
The Last Flight (Original Motion Picture Soundtrack)
{"copyright_id":"0x048421e897cf76d6c7f19f96f0f2b029a36a89354bf660793d9cb0e1c0f0ba6a","isrc":"BEW631311101","name":"Down Town - Instrumentale","registered_at":"2026-06-08T16:16:47Z","spotify_id":"6CacPtgI2EwW10tTBICbN0","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 0x048421e897cf76d6c7f19f96f0f2b029a36a89354bf660793d9cb0e1c0f0ba6a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6CacPtgI2EwW10tTBICbN0.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/6CacPtgI2EwW10tTBICbN0.
{"copyright_id":"0x775dc4d35ff191108c093f7c2313eb94eaadb49bf70631eaf7ff4ab90d86fe16","isrc":"BEW631311102","name":"Ella & Jad - Instrumentale","registered_at":"2026-06-12T01:52:50Z","spotify_id":"4cjTp2Kg04rhTIxORYUkei","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775dc4d35ff191108c093f7c2313eb94eaadb49bf70631eaf7ff4ab90d86fe16. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4cjTp2Kg04rhTIxORYUkei.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/4cjTp2Kg04rhTIxORYUkei.
{"copyright_id":"0x7c3a9b2ae70f124109387ba6c3b7b7f5bb960140f1f86b511925acf08a2c1871","isrc":"BEW631311103","name":"Dawn at Sea - Instrumentale","registered_at":"2026-06-08T07:44:01Z","spotify_id":"78QKoWbcSDce9a1UwbN9DV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3a9b2ae70f124109387ba6c3b7b7f5bb960140f1f86b511925acf08a2c1871. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/78QKoWbcSDce9a1UwbN9DV.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/78QKoWbcSDce9a1UwbN9DV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2720974c607f54994456ad3d49c5f0ed9f00dad0480321449cd80e03da26915. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0izmNKhsS5HgKPTCKdNSQ0.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/0izmNKhsS5HgKPTCKdNSQ0.
{"copyright_id":"0x44024adbd0f0dc3ef287d586ee7b602d766d3ce66c0beafb677fab4e3d020da0","isrc":"BEW631311105","name":"Silent Stories - Instrumentale","registered_at":"2026-06-07T04:24:31Z","spotify_id":"01od1LpPvjDF2EogpKznKe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44024adbd0f0dc3ef287d586ee7b602d766d3ce66c0beafb677fab4e3d020da0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/01od1LpPvjDF2EogpKznKe.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/01od1LpPvjDF2EogpKznKe.