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 0x3dad2c90c2421df4ab66102d0e3d8de8bf5b879eab6b7a1ddc63bf9de8507c34. 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/5f5f0d12-7351-4b97-86f5-c4f31b4d2ad8.json and https://artists.proofprofile.net/proofs/artist/5f5f0d12-7351-4b97-86f5-c4f31b4d2ad8.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 0x9daf39be1e2382b0cb67c959af5110689cf0ac5234c10a88c153f1f9aea344d8. 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/42Z0MJIZp4bu42o9BcTDRE.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/42Z0MJIZp4bu42o9BcTDRE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1599e46affab57c44ab38f402a60b2d337cc3f31f74983c1877a022e613d79da. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kOwIzymXF0mgnSXZNKYiM.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/4kOwIzymXF0mgnSXZNKYiM.
{"copyright_id":"0xa021c6fae8d05b57599cb702d531eb2eedcc1d91a5bba05818de0b17b0d748cd","isrc":"FR90Q2000210","name":"Danse tes morts, Pt. 2","registered_at":"2026-06-09T08:34:42Z","spotify_id":"12ktzUjghHlmvjTPw7ErPd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa021c6fae8d05b57599cb702d531eb2eedcc1d91a5bba05818de0b17b0d748cd. 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/12ktzUjghHlmvjTPw7ErPd.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/12ktzUjghHlmvjTPw7ErPd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44f42f5f3a1b11d68735173fb6de2305b6c53265e837b109d75fcf9a807c3f6. 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/40wKfDdFXuku1hXPzWadif.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/40wKfDdFXuku1hXPzWadif.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daf39be1e2382b0cb67c959af5110689cf0ac5234c10a88c153f1f9aea344d8. 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/0ggxQTpZx23r5AWkUAoY6d.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/0ggxQTpZx23r5AWkUAoY6d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1599e46affab57c44ab38f402a60b2d337cc3f31f74983c1877a022e613d79da. 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/7CQahwGfTSl1skPxhXMEpi.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/7CQahwGfTSl1skPxhXMEpi.
{"copyright_id":"0xa021c6fae8d05b57599cb702d531eb2eedcc1d91a5bba05818de0b17b0d748cd","isrc":"FR90Q2000210","name":"Danse tes morts, Pt. 2","registered_at":"2026-06-09T08:34:42Z","spotify_id":"36lZ4z6G7nAdKgRUyUQh88","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa021c6fae8d05b57599cb702d531eb2eedcc1d91a5bba05818de0b17b0d748cd. 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/36lZ4z6G7nAdKgRUyUQh88.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/36lZ4z6G7nAdKgRUyUQh88.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a782a67111ac54f21989bee244fb6d85bc65a8a241713a8a000a72e5f472af6. 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/5Ogho3dK8YyybSdOXdjzEm.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/5Ogho3dK8YyybSdOXdjzEm.
{"copyright_id":"0x3c461a44c4384e8da4d8c84a0feb86cfccbc826cb8e882597630fce9a471efc6","isrc":"FR90Q1900001","name":"Maintenant ou jamais - Bonus Track","registered_at":"2026-06-05T12:41:33Z","spotify_id":"7qXqfZUIgJ0Qg9p5uhZU3f","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c461a44c4384e8da4d8c84a0feb86cfccbc826cb8e882597630fce9a471efc6. 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/7qXqfZUIgJ0Qg9p5uhZU3f.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/7qXqfZUIgJ0Qg9p5uhZU3f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b2df9a091f795ff73166573c917367c981ef96d54a01348332a542a60d74f4. 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/5aXcbgwDHbPHUk466O2qXN.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/5aXcbgwDHbPHUk466O2qXN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369bc3861a0a4de1cfeedcec819cb574029bfeecdc6b10b334430b09a28041be. 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/3svsxohCI1GNeVRNq46lfn.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/3svsxohCI1GNeVRNq46lfn.
Vertigo - Eichenbaum Gasc Pieuvre & Astrobal Remix
L'amour tout nu - Bertrand Burgalat Remix
L'innocence - Palynka cœur battant Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b2df9a091f795ff73166573c917367c981ef96d54a01348332a542a60d74f4. 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/7sHmSLbdGMns3oBu9v1X3h.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/7sHmSLbdGMns3oBu9v1X3h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd642e7ca5667f6d3e80bc8e095bf6f71d02c00d055443277de521d0af14dc037. 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/5ndf1E4iJvJq6lQVUgQDEg.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/5ndf1E4iJvJq6lQVUgQDEg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5de5e761699cdcd6d304d130c424424b0a92edf2c643d2aeb36b76256502c0d. 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/0aIr59PFqrBK22VfI591bV.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/0aIr59PFqrBK22VfI591bV.
Party in My Pussy (Hi NRG Mickaël Garçon Remix)
Premier orage (Extrait de la compilation Le Grand Numéro de CHANEL par Bertrand Burgalat)
Premier orage - Extrait de la compilation Le Grand Numéro de CHANEL par Bertrand Burgalat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497f6934064bc51098e53e658160cb2809886880e76b8697c9001a6497fd46a. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2OjATTlZrAxGtQVQjec1Kj.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/2OjATTlZrAxGtQVQjec1Kj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305130c68b3948573f11c621001f13bc06983fdd969b0c1dcc63854d417d9e55. 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/39ti7vkRBcYkWE3X5387ad.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/39ti7vkRBcYkWE3X5387ad.
{"copyright_id":"0x749405f2eadc5fff2a5fbbafc0f607f7da8c431404bb6e69c5afd1c74a9241ce","isrc":"FR90Q2200303","name":"Plus fort plus haut","registered_at":"2026-06-19T11:42:57Z","spotify_id":"6ptp7jJXUEHMto0nBsXVn1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749405f2eadc5fff2a5fbbafc0f607f7da8c431404bb6e69c5afd1c74a9241ce. 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/6ptp7jJXUEHMto0nBsXVn1.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/6ptp7jJXUEHMto0nBsXVn1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc409cd62a652742fbeee2bfbf1314926d98520afa1e75790ec4130941db5ed7. 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/1n9IU2xCNY1xb0ocliSmEt.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/1n9IU2xCNY1xb0ocliSmEt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daf39be1e2382b0cb67c959af5110689cf0ac5234c10a88c153f1f9aea344d8. 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/6dlw6B7KcfPve9iW5JNxQi.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/6dlw6B7KcfPve9iW5JNxQi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44f42f5f3a1b11d68735173fb6de2305b6c53265e837b109d75fcf9a807c3f6. 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/5KMWrszW8OhJFGA5bY8l6A.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/5KMWrszW8OhJFGA5bY8l6A.
Maintenant ou jamais (Aloïs Plays Remix)
Maintenant ou jamais - Aloïs Plays Remix
{"copyright_id":"0x3c461a44c4384e8da4d8c84a0feb86cfccbc826cb8e882597630fce9a471efc6","isrc":"FR90Q1900001","name":"Maintenant ou jamais","registered_at":"2026-06-05T12:41:33Z","spotify_id":"7df4ImKu3Q8PX3EtgsiIjl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c461a44c4384e8da4d8c84a0feb86cfccbc826cb8e882597630fce9a471efc6. 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/7df4ImKu3Q8PX3EtgsiIjl.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/7df4ImKu3Q8PX3EtgsiIjl.
{"copyright_id":"0xb01a2ba608db609abb4174d91a6fc9be677b5dedf139624646e6adacd7bd7091","isrc":"FR90Q1900003","name":"Bruce Lee","registered_at":"2026-06-20T06:41:12Z","spotify_id":"5IsBii5SzxlSvbmfXb9spE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01a2ba608db609abb4174d91a6fc9be677b5dedf139624646e6adacd7bd7091. 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/5IsBii5SzxlSvbmfXb9spE.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/5IsBii5SzxlSvbmfXb9spE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd642e7ca5667f6d3e80bc8e095bf6f71d02c00d055443277de521d0af14dc037. 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/1iVnXo7BYNgfULNJuEKCHV.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/1iVnXo7BYNgfULNJuEKCHV.