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 0x16ad634675eb4098c7c608089badbc6b3965e2c7b2f9456ee0c3c0f6cc03a09d. 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/5b91eb0c-e181-4bab-a4af-a22805267322.json and https://artists.proofprofile.net/proofs/artist/5b91eb0c-e181-4bab-a4af-a22805267322.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 0x95e98997cf42564605653321b25fb7b819780fe35b1ef5c7631c60a98b0ae65c. 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/0CXIk6ytVu294DTyoGsnyd.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/0CXIk6ytVu294DTyoGsnyd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0a074048b26df24984e84984b01c2bf0aac93e44db21a0a51d092c30a480d8. 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/7L07sHmULvATcKLc5r2rhW.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/7L07sHmULvATcKLc5r2rhW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c9f8b372fed722dd8b72ea81107d9dc0703752b4b0e05cca72ee791253fde9. 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/4JputRANJn7j085iKPMRzB.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/4JputRANJn7j085iKPMRzB.
Alles Klar (feat. badchieff & Marie Bothmer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c3875a45492959c4a423eb8faa2512ed318cf6380ef86067c8b88982bfe8d7. 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/5aMNmig2IDOYZnG2ham1QV.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/5aMNmig2IDOYZnG2ham1QV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de0f40c04a3462d6df0290247c47a0d4f9e0040b19325f27eb0fe942820aa6a. 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/3q390UsyspApwGJAbIb3mJ.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/3q390UsyspApwGJAbIb3mJ.
Liberté, Égalité, Fatalité (feat. D-Double)
Surveille le Ciel (Commando) (feat. Haeil)
{"copyright_id":"0xe637fdceee08addfe7581b9a47fe2f059b8b515bde754c1cd97f6ca50c70e087","isrc":"FR9O62000200","name":"Cha Cha Cha (feat. Arma Jackson)","registered_at":"2026-06-17T04:10:00Z","spotify_id":"0Uo3eUD67wWHPFc6ki0kj1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe637fdceee08addfe7581b9a47fe2f059b8b515bde754c1cd97f6ca50c70e087. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:30:39Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Uo3eUD67wWHPFc6ki0kj1.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/0Uo3eUD67wWHPFc6ki0kj1.
Apparemment (feat. Xina Mora, Poupie & MC Buzzz)
{"copyright_id":"0xc1d647a034783fdb021d3ccf32745de034fbeea23cd11dd2c2fdead3f2476161","isrc":"FR9O62000210","name":"Apparemment (feat. Xina Mora, Poupie & MC Buzzz)","registered_at":"2026-06-11T10:12:10Z","spotify_id":"3LZqKbxfokU76KoOQp0Bqy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d647a034783fdb021d3ccf32745de034fbeea23cd11dd2c2fdead3f2476161. 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/3LZqKbxfokU76KoOQp0Bqy.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/3LZqKbxfokU76KoOQp0Bqy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f09cfc3fa44b496c00f19684e1112be85b4542d38419b944fdf793e17706fb. 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/5FQJT14wI1viW1RHnTm8r6.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/5FQJT14wI1viW1RHnTm8r6.
Les Yeux Ouverts (feat. FouKi & nelick) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d243fc07b1c6dde796de536438665b517e46256d1b67d943a2bb8088b55dcf6. 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/4jQUrt0FnXjzqtYW1R3owc.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/4jQUrt0FnXjzqtYW1R3owc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9882130af23b2a63166051974493b55b575fe8acc9ab36858234defab9b5d6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3eYUNWSle3gu80sCHjVH28.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/3eYUNWSle3gu80sCHjVH28.
Prisma Dolce Vita (feat. Lord Esperanza)
{"copyright_id":"0xbb0881f99f475d04919e8d02bb79a949f02c6fc50691c3616f9300269da0fca4","isrc":"ITIWE2000039","name":"Prisma Dolce Vita (feat. Lord Esperanza)","registered_at":"2026-06-20T09:48:51Z","spotify_id":"4unt7DMt2zfYJ0JpRWvy3p","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0881f99f475d04919e8d02bb79a949f02c6fc50691c3616f9300269da0fca4. 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/4unt7DMt2zfYJ0JpRWvy3p.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/4unt7DMt2zfYJ0JpRWvy3p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de12af60cb9b3546dd66113467dc9a7d57a8447cee6a215df130ca4ba8fc335. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:53:00Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1YpVPT7Hfgco7XlpQKLl4k.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/1YpVPT7Hfgco7XlpQKLl4k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245ac63bb7bc018a45331d971851649a57f2c85e791e5ee61135cfe04611499. 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/6V8wcH9mqn25Ub91ie5aNE.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/6V8wcH9mqn25Ub91ie5aNE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb108f9642939e871b472d12ae7672bf37a1cc4b1412004046fdbccc7d6b34330. 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/7GwEusWWCeBge5rngVLRew.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/7GwEusWWCeBge5rngVLRew.