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 0xa856722f818da6b3a00d8e6c354fd7a60883a2dc2e4a16aad1f08b30874e589d. 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/e1a58700-ca27-4c55-9ea8-b1593e3704bb.json and https://artists.proofprofile.net/proofs/artist/e1a58700-ca27-4c55-9ea8-b1593e3704bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x1b43a5a46173116102ea1bcf6f90ad757b1180c3e709ec410b5d6998cec79613","isrc":"FRV602400081","name":"Fade Out Lines - Francis Mercier Remix","registered_at":"2026-06-04T09:20:50Z","spotify_id":"3bmbLbTRR1SCF3bAUj6jHE","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 0x1b43a5a46173116102ea1bcf6f90ad757b1180c3e709ec410b5d6998cec79613. 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/3bmbLbTRR1SCF3bAUj6jHE.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/3bmbLbTRR1SCF3bAUj6jHE.
{"copyright_id":"0x11154b32fed4a625d67dea1c4db97b4b6635e97335394bf556f41bcf821c42cc","isrc":"FRV601400098","name":"Fade Out Lines - Synapson Remix","registered_at":"2026-06-06T19:41:39Z","spotify_id":"3PCjf09bUao0zVHCMhuWVv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11154b32fed4a625d67dea1c4db97b4b6635e97335394bf556f41bcf821c42cc. 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/3PCjf09bUao0zVHCMhuWVv.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/3PCjf09bUao0zVHCMhuWVv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc393a43a1fdf3fcacb1c42c66c1c2951ff6e5c767083461a60ed492703e52bac. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JtkxcZBV7Jq6xFFHspT9z.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/5JtkxcZBV7Jq6xFFHspT9z.
Lust for Life (with The Weeknd) [The Avener Rework]
{"copyright_id":"0xffca7b8a2cb1074433ca7555bcb0af75a8f744e1cf3912e6c3c40db96ac8eeb7","isrc":"GBUM71704150","name":"Lust For Life - The Avener Rework","registered_at":"2026-06-10T13:53:46Z","spotify_id":"2mwIWyfoGYwYgLH1AYIZHa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffca7b8a2cb1074433ca7555bcb0af75a8f744e1cf3912e6c3c40db96ac8eeb7. 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/2mwIWyfoGYwYgLH1AYIZHa.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/2mwIWyfoGYwYgLH1AYIZHa.
{"copyright_id":"0x4b5d0b3f08cc1d65f662f59194bb96e43f31dfde48776923cb40c224678a7474","isrc":"FRV602200050","name":"Quando Quando - Boris Way Remix","registered_at":"2026-06-07T16:28:59Z","spotify_id":"4TrsOdpKlnjKYvV07yWwmX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5d0b3f08cc1d65f662f59194bb96e43f31dfde48776923cb40c224678a7474. 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/4TrsOdpKlnjKYvV07yWwmX.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/4TrsOdpKlnjKYvV07yWwmX.
{"copyright_id":"0x9ad071a6d754fd0a8e6f7cfecf558e617e62ecdb9c994ae5f9e1acb75bf7fc7a","isrc":"FRV601400149","name":"Fade out Lines","registered_at":"2026-06-01T07:54:04Z","spotify_id":"1ubVPccf8Vb9mL0XYpVpCV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad071a6d754fd0a8e6f7cfecf558e617e62ecdb9c994ae5f9e1acb75bf7fc7a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ubVPccf8Vb9mL0XYpVpCV.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/1ubVPccf8Vb9mL0XYpVpCV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1134c33c43215870401ab3f17d90bb81d32a7e994563d01d192b940fe034a5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5QwSGnWUzQeMM7xX0l8Kvi.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/5QwSGnWUzQeMM7xX0l8Kvi.
We Go Home - Agrume & Lounes Sunshine Remix
We Go Deep, Saison 3 (Mixed by The Avener)
{"copyright_id":"0x39165d5a59aecd6d27d8d9a82fc92ee892f1c8ee65dfa4e18e263897a9fc31a7","isrc":"FRV601500119","name":"We Go Home - Agrume & Lounes Sunshine Remix","registered_at":"2026-06-09T18:06:33Z","spotify_id":"54V4jZa6G0J3NHHyGjOUKI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39165d5a59aecd6d27d8d9a82fc92ee892f1c8ee65dfa4e18e263897a9fc31a7. 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/54V4jZa6G0J3NHHyGjOUKI.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/54V4jZa6G0J3NHHyGjOUKI.
To Let Myself Go - Don Rimini Sweet Home Version
{"copyright_id":"0x118357333b27608e057e0f47527efaa5a5dc1ff60b9eeff90c667419974ce63c","isrc":"FRV601500139","name":"To Let Myself Go - Don Rimini Sweet Home Version","registered_at":"2026-06-09T07:45:11Z","spotify_id":"1mz3dbBfARsURW9pKou0aL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118357333b27608e057e0f47527efaa5a5dc1ff60b9eeff90c667419974ce63c. 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/1mz3dbBfARsURW9pKou0aL.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/1mz3dbBfARsURW9pKou0aL.
{"copyright_id":"0x0d7ff7e6744b80bf261b58ba7c874002dff884293d0706b14f1e29e7f3c736b3","isrc":"FRV601600048","name":"We Go Deep, Saison 3 - Continuous Mix","registered_at":"2026-06-10T04:28:20Z","spotify_id":"4mpOa1uwgXUh2PK2vmCeKF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7ff7e6744b80bf261b58ba7c874002dff884293d0706b14f1e29e7f3c736b3. 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/4mpOa1uwgXUh2PK2vmCeKF.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/4mpOa1uwgXUh2PK2vmCeKF.
We Go Deep - Remix Edition - Continuous Mix
We Go Deep (Remix Edition - Mixed by The Avener)
{"copyright_id":"0x4b616faa6670bf2212b62a66c61354aaab045a73df06b9e61d8bae37e2f1ca3a","isrc":"FRV601500178","name":"We Go Deep - Remix Edition - Continuous Mix","registered_at":"2026-06-08T10:56:21Z","spotify_id":"5yTEOysihnmqgeQPY8OPy1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b616faa6670bf2212b62a66c61354aaab045a73df06b9e61d8bae37e2f1ca3a. 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/5yTEOysihnmqgeQPY8OPy1.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/5yTEOysihnmqgeQPY8OPy1.
Fade Out Lines - Chopstick & Johnjon Remix
We Go Deep, Saison 1 - Mixed By The Avener
{"copyright_id":"0x09adbbb320df7101f0c144b8be23daa031f217d8778657fe99f4771299e725c5","isrc":"FRV601400083","name":"Fade Out Lines - Chopstick & Johnjon Remix","registered_at":"2026-06-06T19:37:18Z","spotify_id":"0ec4WR1G3p8PMe1OyZE9Oc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09adbbb320df7101f0c144b8be23daa031f217d8778657fe99f4771299e725c5. 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/0ec4WR1G3p8PMe1OyZE9Oc.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/0ec4WR1G3p8PMe1OyZE9Oc.
We Go Deep, Saison 4 (Mixed by The Avener)
{"copyright_id":"0xffca7b8a2cb1074433ca7555bcb0af75a8f744e1cf3912e6c3c40db96ac8eeb7","isrc":"GBUM71704150","name":"Lust for Life - The Avener Rework","registered_at":"2026-06-10T13:53:46Z","spotify_id":"26c1OILyEsyYiBOfYUvoPo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffca7b8a2cb1074433ca7555bcb0af75a8f744e1cf3912e6c3c40db96ac8eeb7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/26c1OILyEsyYiBOfYUvoPo.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/26c1OILyEsyYiBOfYUvoPo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89e3e73ee35657f2780c467332839246f847aa90c9bdabf9fc5140f4d8631eb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1DEIkEXyQ52IqlXV23RB1i.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/1DEIkEXyQ52IqlXV23RB1i.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e637032732b8599ce4034cc7d47fe0a6b4933501cc1f2da3b3c2c859c35b64. 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/3Ky6m29wRMABl33Q644KFe.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/3Ky6m29wRMABl33Q644KFe.