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 0x4589a6e664ce847abbc0b66ff6bb73a33011d7ddeb0f73a5350a7a5256cd9cba. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7943f047-fe82-4587-91c5-8cf789e6a79b.json and https://artists.proofprofile.net/proofs/artist/7943f047-fe82-4587-91c5-8cf789e6a79b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe8dec1be9510ae9465aae21d22c9b3b3460bb51c4fe5153e7edeb2ced61ff0cf","isrc":"QZFYX2129407","name":"Robotico Es Tu Corazón","registered_at":"2026-06-28T23:45:32Z","spotify_id":"6AlVE3LrCueY3WFLHrKQqR","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 0xe8dec1be9510ae9465aae21d22c9b3b3460bb51c4fe5153e7edeb2ced61ff0cf. 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/6AlVE3LrCueY3WFLHrKQqR.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/6AlVE3LrCueY3WFLHrKQqR.
{"copyright_id":"0x92b4876be9f515a1c98443bbe52ef33111eebdfb233ddab0a0011455441ab3a1","isrc":"QZFYX2129408","name":"Bolero De Un Enamorado","registered_at":"2026-06-28T23:35:16Z","spotify_id":"3Px6ksD4VwwjL38Ej9v8cA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b4876be9f515a1c98443bbe52ef33111eebdfb233ddab0a0011455441ab3a1. 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/3Px6ksD4VwwjL38Ej9v8cA.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/3Px6ksD4VwwjL38Ej9v8cA.
{"copyright_id":"0x5525be02c0e9c79ffb4b01061613cdfc684ef3b08ec7f1015bb7c3f7f02e95e6","isrc":"QZK6M2114544","name":"Cuando Te Besé","registered_at":"2026-06-28T18:23:58Z","spotify_id":"3WTfR88QYFc0IBWRoYdZM5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5525be02c0e9c79ffb4b01061613cdfc684ef3b08ec7f1015bb7c3f7f02e95e6. 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/3WTfR88QYFc0IBWRoYdZM5.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/3WTfR88QYFc0IBWRoYdZM5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb21d7439e2024850787fce830b56829eec7c97a851e7649912c68abceae90b5. 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/300U9g9Upy7G4GUP9bmWUq.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/300U9g9Upy7G4GUP9bmWUq.