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 0xba4762897ba6a21703922e8d19b77a26aad5170e69d0aa6a270251364c8fb987. 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/4f358869-9529-4928-a439-b98d0aba8762.json and https://artists.proofprofile.net/proofs/artist/4f358869-9529-4928-a439-b98d0aba8762.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Peut-être pas cette fois - Live à l'Olympia
Nico Teen Love (avec Benjamin Biolay) - Live à l'Olympia
I Believe in Miracles - Live à l'Olympia
La valse à mille temps - Live à l'Olympia
{"copyright_id":"0x9d69ae0e6ba44031c56998bff9f3cc9bdf94fd2d5aacfe48c691a27a242d7bc3","isrc":"FRZ041000419","name":"I'm a Lady","registered_at":"2026-06-29T15:55:26Z","spotify_id":"2u1xBBRskr4gxza3z8xCFB","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 0x9d69ae0e6ba44031c56998bff9f3cc9bdf94fd2d5aacfe48c691a27a242d7bc3. 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/2u1xBBRskr4gxza3z8xCFB.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/2u1xBBRskr4gxza3z8xCFB.
Nico Teen Love - Live au Printemps de Bourges
Lalalove You - Live au Printemps de Bourges
Britty Boy - Live au Printemps de Bourges
Black & Blue - Bollywood; Live acoustique
Everything Goes My Way - Live acoustique
La Valse à mille temps - Live à l'Olympia
Everything Goes My Way (Cover Metronomy) - Live acoustique
Black & Blue (Bollywood) - Live acoustique
Cola maya - Live au Printemps de Bourges
Green Is the Word for Sun - Live à l'Alhambra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3680f24ac96e87462ab904af1d53db50633019f4ea707408608eaf2342887a. 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/67YqaUNw19jFcPq4OVp9aF.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/67YqaUNw19jFcPq4OVp9aF.
{"copyright_id":"0x52b95c463df4fb978b04a78aab9c8e6104576c8a0805188f14c83e9f0ebd8cd8","isrc":"FRZ041300512","name":"Bye Bye (feat. Vanessa Paradis)","registered_at":"2026-06-10T18:00:37Z","spotify_id":"0qVxm8q5E2BOpxTmNQqPz7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b95c463df4fb978b04a78aab9c8e6104576c8a0805188f14c83e9f0ebd8cd8. 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/0qVxm8q5E2BOpxTmNQqPz7.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/0qVxm8q5E2BOpxTmNQqPz7.
{"copyright_id":"0xc946a6815198d4c19bf3cfad6d389f33bd04d5a2901ec71902a713b533a47eff","isrc":"FRZ041300513","name":"Lala Queen (feat. Oxmo Puccino)","registered_at":"2026-06-25T21:35:13Z","spotify_id":"16Z2Ok8S71lIzKIfveJYeG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc946a6815198d4c19bf3cfad6d389f33bd04d5a2901ec71902a713b533a47eff. 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/16Z2Ok8S71lIzKIfveJYeG.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/16Z2Ok8S71lIzKIfveJYeG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f8948c2abcd492c9537aa10f4400a1663457a8bd8e659703b09b508a7c83b5. 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/1yY1yMkoDuKtQTyL3vMvIT.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/1yY1yMkoDuKtQTyL3vMvIT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f65ba9cf6898c3ad04e514c3c3ac68f13eb2dfcf5a6c3217074d1380a35f649. 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/7gnM1MUYU8lmwncZ2jj52n.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/7gnM1MUYU8lmwncZ2jj52n.
{"copyright_id":"0xbd27b1a8fc42dd5c9d9290be1cf9adab2dd3f65909ee99882a48f05dbef75135","isrc":"FRZ041300514","name":"Stéréo (feat. Keren Ann)","registered_at":"2026-06-25T21:36:55Z","spotify_id":"5ZEb2W92QtvVEnS4WEgidc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd27b1a8fc42dd5c9d9290be1cf9adab2dd3f65909ee99882a48f05dbef75135. 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/5ZEb2W92QtvVEnS4WEgidc.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/5ZEb2W92QtvVEnS4WEgidc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87905a46c2958142e550f92cf8b79700913681437ca6937f0721f60fc934ec6. 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/5qUfQjZVfOczW5X4kvHflk.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/5qUfQjZVfOczW5X4kvHflk.
{"copyright_id":"0x48f331574cda827e3283e5faa4482ec46f690abb198db76484fc45c129c67113","isrc":"FRZ041300515","name":"Long courrier (feat. Benjamin Biolay)","registered_at":"2026-06-20T06:37:00Z","spotify_id":"0tMBDAmQ0SFiBGWwbKfx7Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f331574cda827e3283e5faa4482ec46f690abb198db76484fc45c129c67113. 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/0tMBDAmQ0SFiBGWwbKfx7Z.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/0tMBDAmQ0SFiBGWwbKfx7Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a319603f2ddf04627e2ee29d49e02329d545938878074e8178441aaeee83d8b. 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/0diTyEDSld0fTFQ8zpVHgZ.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/0diTyEDSld0fTFQ8zpVHgZ.
{"copyright_id":"0xb99ad9d8ea7293a94f557b84e4f8ad177f66cef3033f99206df0a833c1058cfa","isrc":"FRZ041300511","name":"Wolfman (avec Carl Barat)","registered_at":"2026-06-24T13:45:35Z","spotify_id":"3EFhpNcCo7HabMY6udSEKf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99ad9d8ea7293a94f557b84e4f8ad177f66cef3033f99206df0a833c1058cfa. 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/3EFhpNcCo7HabMY6udSEKf.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/3EFhpNcCo7HabMY6udSEKf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ecdda8b613065894b0ec48cc013ea1a6ffdfa716bc00008431611658b4be53. 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/719Fqd88O6tIAK7UrIQjWS.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/719Fqd88O6tIAK7UrIQjWS.
{"copyright_id":"0x3197ad76ebba3aaf4bb95d3f36295bc56175a3aa0e7facd78ba8ed6cdba87c21","isrc":"FRZ041200582","name":"Long courrier","registered_at":"2026-06-20T06:40:20Z","spotify_id":"6MRPmTlkXn4Lv4lSfpeBfA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3197ad76ebba3aaf4bb95d3f36295bc56175a3aa0e7facd78ba8ed6cdba87c21. 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/6MRPmTlkXn4Lv4lSfpeBfA.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/6MRPmTlkXn4Lv4lSfpeBfA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec024b9c0137492459bf21aadb09655961b9f8c43830a9e16e79b1f8a16d17a. 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/47hEn83INHEmppjvIF4XwY.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/47hEn83INHEmppjvIF4XwY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14cb74ab3be676f5e0208574149bd4dfbabe17dc49903ec920a746aeef725b4. 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/4HGr2Wr82okis4rVy5YOQn.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/4HGr2Wr82okis4rVy5YOQn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00088aaeb7de750824f3ce209278659cfc2f356a576fd10a6395a48c12c8aadc. 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/0dYxesTkWgwtRsILYGUK8W.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/0dYxesTkWgwtRsILYGUK8W.
{"copyright_id":"0x73952187accc9ad3705cf79a4fc1bdb2ead0c7680245d2c854fd7decb12488b8","isrc":"FRZ041200584","name":"Police déprime","registered_at":"2026-06-22T01:32:39Z","spotify_id":"02RaZyb6cH60IP7IDCGXvM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73952187accc9ad3705cf79a4fc1bdb2ead0c7680245d2c854fd7decb12488b8. 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/02RaZyb6cH60IP7IDCGXvM.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/02RaZyb6cH60IP7IDCGXvM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc48d34b8921b968330124158585da1b4af3cdf848db73ee6271cd250b62bf5. 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/4RcTgkUSniyVc0sSfCUaBL.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/4RcTgkUSniyVc0sSfCUaBL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505c468dfce4a37a4b120336181c171a980c850e5391504389f44f99d7f66e4f. 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/2DIvb0nM7dKr3S4NKr8pRw.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/2DIvb0nM7dKr3S4NKr8pRw.
{"copyright_id":"0xf874241957441fd4c1e6a928b8613412fbb811fa35d76e578c376c9a03b49140","isrc":"FRZ041200595","name":"Coups et blessures - Acoustic Version","registered_at":"2026-06-22T01:34:29Z","spotify_id":"6876haJvYuPrgpwQVQdTBY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf874241957441fd4c1e6a928b8613412fbb811fa35d76e578c376c9a03b49140. 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/6876haJvYuPrgpwQVQdTBY.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/6876haJvYuPrgpwQVQdTBY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ca9fbccc8c0656108548ad7eda34708b7ddee62eebed82897ea44748803e7c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7mzNIftcVe4z4jkhSHPkeR.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/7mzNIftcVe4z4jkhSHPkeR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ca9fbccc8c0656108548ad7eda34708b7ddee62eebed82897ea44748803e7c. 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/5Kjc9gMbeR2HGdCN1heEea.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/5Kjc9gMbeR2HGdCN1heEea.