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 0x592456ec2e6b3bbc2484c9d14d0818365d19e8271ba9297c3bcf2a403d7d2f35. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c8bacad-56f8-4f58-b36f-68e9f5972078.json and https://artists.proofprofile.net/proofs/artist/9c8bacad-56f8-4f58-b36f-68e9f5972078.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Célébration 2 - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x5e79f493dd6b2bbf7e3af51f09585f6bfa667f0b0d8fd96fd3fdfc4517708451","isrc":"FR9W12102017","name":"Célébration 2 - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-05T21:04:20Z","spotify_id":"75TQg0n4Zmo4p70xgqaoYj","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 0x5e79f493dd6b2bbf7e3af51f09585f6bfa667f0b0d8fd96fd3fdfc4517708451. 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/75TQg0n4Zmo4p70xgqaoYj.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/75TQg0n4Zmo4p70xgqaoYj.
{"copyright_id":"0x5e79f493dd6b2bbf7e3af51f09585f6bfa667f0b0d8fd96fd3fdfc4517708451","isrc":"FR9W12102017","name":"Célébration 2 - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-05T21:04:20Z","spotify_id":"3KNB1G639w2QmSpUxxwObY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e79f493dd6b2bbf7e3af51f09585f6bfa667f0b0d8fd96fd3fdfc4517708451. 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/3KNB1G639w2QmSpUxxwObY.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/3KNB1G639w2QmSpUxxwObY.
{"copyright_id":"0x5e79f493dd6b2bbf7e3af51f09585f6bfa667f0b0d8fd96fd3fdfc4517708451","isrc":"FR9W12102017","name":"Célébration 2 - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-05T21:04:20Z","spotify_id":"48kM9VfXBUF9RdUgcPba7h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e79f493dd6b2bbf7e3af51f09585f6bfa667f0b0d8fd96fd3fdfc4517708451. 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/48kM9VfXBUF9RdUgcPba7h.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/48kM9VfXBUF9RdUgcPba7h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3405a04b8f29e0be3a28826d2d6286e1ba5eba9790ae5fa6eaf41fb00ed457af. 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/26dysqLhr3YaLNUIwfVwPd.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/26dysqLhr3YaLNUIwfVwPd.
Gambas - Extrait de la BO de « En Passant Pécho »
En Passant Pécho (Bande originale inspirée du film)
{"copyright_id":"0xe78c495b894fd6dab11225a679957253bbc340986082140d7e1eb5b83cfb36b7","isrc":"FR9W12104159","name":"Gambas - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-19T08:54:19Z","spotify_id":"0yfFPF8hZgVcuneqWjJo9d","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78c495b894fd6dab11225a679957253bbc340986082140d7e1eb5b83cfb36b7. 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/0yfFPF8hZgVcuneqWjJo9d.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/0yfFPF8hZgVcuneqWjJo9d.
Mango - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0xd18cc81dd0c726c1b6b8d2fd6d153cf5b4ef285d32d28d22e40cb73a63f2edde","isrc":"FR9W12101976","name":"Mango - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-05T08:09:16Z","spotify_id":"1mKg1S2CE0plkFkKRnZCwl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18cc81dd0c726c1b6b8d2fd6d153cf5b4ef285d32d28d22e40cb73a63f2edde. 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/1mKg1S2CE0plkFkKRnZCwl.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/1mKg1S2CE0plkFkKRnZCwl.
Cramé - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x4d2301bceaea036254df75ea2302142d55dce4b1b21cdfd723132fde7b346749","isrc":"FR9W12103850","name":"Cramé - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-09T06:29:38Z","spotify_id":"2AroO4ZrY6Wyg71dt3OaI8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2301bceaea036254df75ea2302142d55dce4b1b21cdfd723132fde7b346749. 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/2AroO4ZrY6Wyg71dt3OaI8.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/2AroO4ZrY6Wyg71dt3OaI8.
Gucci Versace - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0xd4767275b2aef11206d88d5cb9e9b2715fb604eb30c94314d7b7ec72dae976ad","isrc":"FR9W12102657","name":"Gucci Versace - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-08T18:56:18Z","spotify_id":"3bb5HDHQTzMp5aW668LlCP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4767275b2aef11206d88d5cb9e9b2715fb604eb30c94314d7b7ec72dae976ad. 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/3bb5HDHQTzMp5aW668LlCP.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/3bb5HDHQTzMp5aW668LlCP.
Balafre (feat. ASHE 22) - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x5157da023b6bd91639916d94c855d4c34a8830ac244062ecb7ba996944d3c393","isrc":"FR9W12034928","name":"Balafre (feat. ASHE 22) - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-09T16:07:50Z","spotify_id":"4S85XNKUFhoeYUQi3qLUSg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5157da023b6bd91639916d94c855d4c34a8830ac244062ecb7ba996944d3c393. 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/4S85XNKUFhoeYUQi3qLUSg.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/4S85XNKUFhoeYUQi3qLUSg.
Mon poto - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x833970e803f1da5e2ee932ab519d49855a6e7115993fcea98ab550ede63079fa","isrc":"FR9W12102028","name":"Mon poto - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-01T18:44:35Z","spotify_id":"5qFOdxS3v8Dny9T4p2CUIy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833970e803f1da5e2ee932ab519d49855a6e7115993fcea98ab550ede63079fa. 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/5qFOdxS3v8Dny9T4p2CUIy.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/5qFOdxS3v8Dny9T4p2CUIy.
Pas bien - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0xd36e5e7750f361dbebd424b1045348b4c9b8ccfd51d0b0addf0e79a746359df6","isrc":"FR9W12034723","name":"Pas bien - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-06T23:02:59Z","spotify_id":"2Sn79Hf5gV9icwjSuPtMJb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36e5e7750f361dbebd424b1045348b4c9b8ccfd51d0b0addf0e79a746359df6. 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/2Sn79Hf5gV9icwjSuPtMJb.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/2Sn79Hf5gV9icwjSuPtMJb.
Message groupé - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x25d36e0579d774050de7c79b598bad8e97ab57788fb07c69f4e538c2a595bc08","isrc":"FR9W12103859","name":"Message groupé - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-07T20:05:36Z","spotify_id":"4OearvsmiO40opa68g083X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d36e0579d774050de7c79b598bad8e97ab57788fb07c69f4e538c2a595bc08. 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/4OearvsmiO40opa68g083X.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/4OearvsmiO40opa68g083X.
Mañana - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0xdac3c413498b951358f6ecd1179f82e07d83a01f3e0b28e44f5b49ad9b682b6c","isrc":"FR9W12102029","name":"Mañana - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-07T20:11:50Z","spotify_id":"0UaWEOVIJ5Xd72QsrfD6DT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac3c413498b951358f6ecd1179f82e07d83a01f3e0b28e44f5b49ad9b682b6c. 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/0UaWEOVIJ5Xd72QsrfD6DT.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/0UaWEOVIJ5Xd72QsrfD6DT.
Baby (feat. Vald) - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x3d8a8c6ef513811c705ba4eb27de5fd4d722e212d6d41e5eac846be88c42fdf1","isrc":"FR9W12103855","name":"Baby (feat. Vald) - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-09T13:32:24Z","spotify_id":"6bf6psoBChsEfvvitL1IYl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8a8c6ef513811c705ba4eb27de5fd4d722e212d6d41e5eac846be88c42fdf1. 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/6bf6psoBChsEfvvitL1IYl.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/6bf6psoBChsEfvvitL1IYl.
Perdu - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x618885a9ec8d0c038795aa9ed741ffa713257097381be60038f6bf27f6ed8024","isrc":"FR9W12103856","name":"Perdu - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-11T05:22:53Z","spotify_id":"5DFFH7ZdMfEq74HrK4eEV8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618885a9ec8d0c038795aa9ed741ffa713257097381be60038f6bf27f6ed8024. 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/5DFFH7ZdMfEq74HrK4eEV8.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/5DFFH7ZdMfEq74HrK4eEV8.
Interlude - Hedi et Cokeman - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0xcaadad7c71377781ee3084d24e8f1ccf5a1feff208bf1bde3805f1d64c3c7eae","isrc":"FR9W12104160","name":"Interlude - Hedi et Cokeman - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-26T22:02:55Z","spotify_id":"6eekKDAza9NiciHLZIZ3er","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaadad7c71377781ee3084d24e8f1ccf5a1feff208bf1bde3805f1d64c3c7eae. 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/6eekKDAza9NiciHLZIZ3er.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/6eekKDAza9NiciHLZIZ3er.
Lewandowski - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x75bcfea3b1b3b03d8b1aaa5b70016b7278c4a8a41f1f75cda353154db95c5873","isrc":"FR9W12104162","name":"Lewandowski - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-08T02:13:03Z","spotify_id":"4nB94VP73YkwVUotGECN0E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bcfea3b1b3b03d8b1aaa5b70016b7278c4a8a41f1f75cda353154db95c5873. 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/4nB94VP73YkwVUotGECN0E.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/4nB94VP73YkwVUotGECN0E.
Adelanto - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x2c3f46c77a1b6e51544dbd64a62d3ea5f7d9362a2fca994cadb74a59a7c94729","isrc":"FR9W12103853","name":"Adelanto - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-04T11:06:03Z","spotify_id":"235dlyZyKfp472FdjSjRAk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3f46c77a1b6e51544dbd64a62d3ea5f7d9362a2fca994cadb74a59a7c94729. 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/235dlyZyKfp472FdjSjRAk.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/235dlyZyKfp472FdjSjRAk.
On ira loin - Extrait de la BO de « En Passant Pécho »
{"copyright_id":"0x2a1d9525d49a787f2ad1624c70cd6c40e728d80f8a1f7173463a0c3c71752230","isrc":"FR9W12103857","name":"On ira loin - Extrait de la BO de « En Passant Pécho »","registered_at":"2026-06-09T16:07:50Z","spotify_id":"7nptKUfvUnzPhL72kWBB4b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1d9525d49a787f2ad1624c70cd6c40e728d80f8a1f7173463a0c3c71752230. 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/7nptKUfvUnzPhL72kWBB4b.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/7nptKUfvUnzPhL72kWBB4b.