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 0x2e2e7f2334192dc7d8c986a7e22cb89b4513f48e435b99668fc2866d0fe8ba9d. 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/216b2264-582f-46d0-9a2d-73bacb19762c.json and https://artists.proofprofile.net/proofs/artist/216b2264-582f-46d0-9a2d-73bacb19762c.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 0x25597aab0ce1b40a81aee5184c449e427dba53d277fd029f0328375ee2011ae7. 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/1aoOvkIk1hz1HMKn5PBmCJ.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/1aoOvkIk1hz1HMKn5PBmCJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f10d5549cacf55241070c4fea8622810f6e1567804d73412957de68b3ec4fc2. 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/2G0rlTv5bAdtJAEdSJRN3y.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/2G0rlTv5bAdtJAEdSJRN3y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba92b8c70616eba24121c38a8d85c043eca48594f08e6de417c49470e9072e22. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28PPQM156LbDcCJDLhlCTn.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/28PPQM156LbDcCJDLhlCTn.
Break the Surface (Captain Planet Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ba6bcf7a84ff7131c9687daa2a58f3747af028f03e92a97803497231417d37. 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/1XISMzOjduFF2xJeP9y05q.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/1XISMzOjduFF2xJeP9y05q.
Ambient Journeys, Vol 1. (La Selva - Continuous Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022ae166d4cf3bf8922ee4635fcdc55e64da6a4e0987ebd73ce400b550c13018. 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/5n4FWUOriJi8H1pm3Ws8PR.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/5n4FWUOriJi8H1pm3Ws8PR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d26499727574a123962de05d7d9ca8286420bf2056bfbe89fe47924b0c81fb8. 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/7KqSB4H7OUj47ZZjReHghe.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/7KqSB4H7OUj47ZZjReHghe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f927a35dd529d43bf3003872cc795912688b9423b1160d54926a8c02259f6f2. 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/4GNezVq4aSgb6ZH5wBJvn9.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/4GNezVq4aSgb6ZH5wBJvn9.
{"copyright_id":"0x52a7515597eab1478acdeffe21d9a2b9dd11df0f74d16f645195ee344199ddd0","isrc":"GBRKQ2386753","name":"The Chain - remix","registered_at":"2026-06-10T19:34:00Z","spotify_id":"3MqZTg9SCireZHBQHWpZep","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a7515597eab1478acdeffe21d9a2b9dd11df0f74d16f645195ee344199ddd0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3MqZTg9SCireZHBQHWpZep.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/3MqZTg9SCireZHBQHWpZep.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f10d5549cacf55241070c4fea8622810f6e1567804d73412957de68b3ec4fc2. 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/2gJXYaErr7vF7XMMG7tSgZ.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/2gJXYaErr7vF7XMMG7tSgZ.
{"copyright_id":"0xe98dad93416be10af0fda633a04a74fe6684d182179cbc6bc9da9f68aad4f844","isrc":"QZC5T2100069","name":"Two Step - Dirtwire Remix","registered_at":"2026-06-09T16:50:24Z","spotify_id":"4zuhkVcgJylrqItcrowQbs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98dad93416be10af0fda633a04a74fe6684d182179cbc6bc9da9f68aad4f844. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4zuhkVcgJylrqItcrowQbs.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/4zuhkVcgJylrqItcrowQbs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba92b8c70616eba24121c38a8d85c043eca48594f08e6de417c49470e9072e22. 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/3Uki5zacHnVUJH41K9tomJ.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/3Uki5zacHnVUJH41K9tomJ.
Fantastic Fungi: Reimagine, Vol. II (Inspired by the Film & Mycelial Kingdom)
{"copyright_id":"0xfb483e052e59c2ccdff9c3880f7982c85c786e70da6c0ff2a2c5fc0445e088f9","isrc":"TCABQ1350126","name":"Sailing the Solar Flares","registered_at":"2026-06-26T23:23:10Z","spotify_id":"5jDOha9wDH1oXKxQOk958I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb483e052e59c2ccdff9c3880f7982c85c786e70da6c0ff2a2c5fc0445e088f9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jDOha9wDH1oXKxQOk958I.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/5jDOha9wDH1oXKxQOk958I.