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 0xba151632bdd182d27c9826fbc99111b6ac0acec64e5f76bbfa956c93333659dc. 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/766b0ce9-cbba-4e8b-9e27-cb1e2c0d7345.json and https://artists.proofprofile.net/proofs/artist/766b0ce9-cbba-4e8b-9e27-cb1e2c0d7345.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 0x767d667757c3d7e60694ea8044f031e32a0aefd7e5198b453abfd69e07c2d0c1. 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/1EOZ4C8Zx5ofvZ3XlUWNqh.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/1EOZ4C8Zx5ofvZ3XlUWNqh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d861a4271f7208bd025101a249c0e056d43f960c802235666da71a410f9d86. 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/36CJzcBR6SKoU7ikDLej1F.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/36CJzcBR6SKoU7ikDLej1F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c744e3049c3f604933963870ee359a0c17da94d26a2407a6072d1655fa0116. 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/5wuqQ4WpKVb2VwdanN5eP4.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/5wuqQ4WpKVb2VwdanN5eP4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916133c4f02239a055b7415d5c5ccdece3c727ddbab4281816ff81214fd03e2f. 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/6xpOPVSBpNl6hWP0nWob1K.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/6xpOPVSBpNl6hWP0nWob1K.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4c04a2a84a4f7fb37c43a5f4800b02b6e9fd9c48e66342e10b9f6ca0c5695e. 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/0PGt6cwpuZMrF5owPmEWX3.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/0PGt6cwpuZMrF5owPmEWX3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65807939be3435b22dce2cc003f5e3446f57b3f4c828df212dde2462e651f9e3. 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/1afgreY6DLR9VEvuXSQMlJ.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/1afgreY6DLR9VEvuXSQMlJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537604928f5a793e076edc425c4a97a3a73b714b5d24fa66862ed6c0f4c83bf6. 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/1jOCnK32ReQNPba7mgZQQ7.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/1jOCnK32ReQNPba7mgZQQ7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e011fac66dc3a2a7e38d694b66b7eb0a9b221884169f7591e5b0a7071d39c61. 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/1FSbvTcyzjiH1poBTQ9YvC.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/1FSbvTcyzjiH1poBTQ9YvC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faa3419ca4840d68f8a766ef635243f75094ed3f59a8e1f9688e0382973f4ae. 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/3OnTCa1IOuflK7lOTUZ8FT.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/3OnTCa1IOuflK7lOTUZ8FT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f5bb9a76ac3efdafbf2267525380b2d8e6c0eee8a4ac841c600fbafebebf44. 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/7h7Jf7diaQfRQtKwr9jsmw.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/7h7Jf7diaQfRQtKwr9jsmw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9415d4d9b0777671cdd55e2bef47088e9884e3866cc28e85b3ff5453d8a2e7d8. 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/66SB1JByAkDd9VjNRz0fhR.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/66SB1JByAkDd9VjNRz0fhR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324366f48e4fb5b68fa5f4385718984f998a7b08379b514e59398bf89e50eff8. 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/43Vunju2ibeyKm6nacQzVR.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/43Vunju2ibeyKm6nacQzVR.
{"copyright_id":"0x89bf4fe69c2503d322f8aef107d7893cfb3c21a02dc330a9b03eb876401f404f","isrc":"QM3DF2106777","name":"Fallen Blade","registered_at":"2026-06-27T09:52:06Z","spotify_id":"6ssfSMmoYUFYtmHGv6TRB3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bf4fe69c2503d322f8aef107d7893cfb3c21a02dc330a9b03eb876401f404f. 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/6ssfSMmoYUFYtmHGv6TRB3.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/6ssfSMmoYUFYtmHGv6TRB3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8711eb2b016450fe6b15ed7279a2e0697fee3b03c69c1139a7d1353af7a25e7. 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/6cc2EcISyOVGAyIub0Xl8z.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/6cc2EcISyOVGAyIub0Xl8z.
{"copyright_id":"0x073138eb12dafabab060eb1b15fe66f5d5312a783ce1fe6271ec47475292218b","isrc":"QZMHP2067817","name":"Lurking Rōnin","registered_at":"2026-06-23T10:59:31Z","spotify_id":"3oOIpneXN69tdYFhrsMu9q","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073138eb12dafabab060eb1b15fe66f5d5312a783ce1fe6271ec47475292218b. 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/3oOIpneXN69tdYFhrsMu9q.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/3oOIpneXN69tdYFhrsMu9q.
{"copyright_id":"0xa1b45cbd677e4b3ff7b0c1c2cb92d20ff45cb36a78b68eb7436af9bc542bdcf8","isrc":"QZMHM2017022","name":"Lost Worlds","registered_at":"2026-06-07T14:36:00Z","spotify_id":"0T7XAfEJDEAU8U4n4xryOV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b45cbd677e4b3ff7b0c1c2cb92d20ff45cb36a78b68eb7436af9bc542bdcf8. 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/0T7XAfEJDEAU8U4n4xryOV.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/0T7XAfEJDEAU8U4n4xryOV.
{"copyright_id":"0xcf70f0d9ad4b6b04e1fe27f8da2869ed5acc0b0138698e7645b674a9ac3354fa","isrc":"GBLV62022473","name":"Broken Blade","registered_at":"2026-06-24T17:41:44Z","spotify_id":"6N3TGwNRDwu8WD51DFJfG9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf70f0d9ad4b6b04e1fe27f8da2869ed5acc0b0138698e7645b674a9ac3354fa. 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/6N3TGwNRDwu8WD51DFJfG9.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/6N3TGwNRDwu8WD51DFJfG9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f95f4e926f89c425b4ecd11511c95097bb1c5a8af392e8a62a5432173be6a5c. 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/5KevRrelrxlmB0BvVmp9CT.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/5KevRrelrxlmB0BvVmp9CT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d1ba9f4b5585f490c07b5b2dc4d80763b735b28e687289d6a6821c97f1c1e4. 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/0LQCf1DVZFYLyPj7rxB8Zm.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/0LQCf1DVZFYLyPj7rxB8Zm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e12906f634b8ac7bf32d17ec13a3892ef8256563f8c252381e3e01fe6e8126. 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/0uXKtFvKGX8LRG8Neqnsry.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/0uXKtFvKGX8LRG8Neqnsry.
{"copyright_id":"0x73d28d47bd1cdb40321327d00f8789c60312d4ec9f461760cba5daaccca6ce67","isrc":"GBKQU2078156","name":"Mountain Top","registered_at":"2026-06-10T19:41:22Z","spotify_id":"0BhfIvquEGNWN2pNy8sJSh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d28d47bd1cdb40321327d00f8789c60312d4ec9f461760cba5daaccca6ce67. 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/0BhfIvquEGNWN2pNy8sJSh.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/0BhfIvquEGNWN2pNy8sJSh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159743099b945fec24c6ccd8a068cc1e1b6478ed363abb1134043475a8193d42. 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/58heKhVoYe0mXW4PB3CfLF.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/58heKhVoYe0mXW4PB3CfLF.
{"copyright_id":"0xe0458600b465d1ad55b6c3cad06e408b73707b6a989f63d33d2c3a2ead024e56","isrc":"GBKQU2078158","name":"Fly With Me","registered_at":"2026-06-10T05:38:13Z","spotify_id":"7FjmQSsafZgkaFzjvriNQC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0458600b465d1ad55b6c3cad06e408b73707b6a989f63d33d2c3a2ead024e56. 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/7FjmQSsafZgkaFzjvriNQC.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/7FjmQSsafZgkaFzjvriNQC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77c764f660ad0137cdbc03a4374752250d414925fbbd902e5e1ffe61295031a. 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/1lH6caLUjcjQhb3P9wcKfY.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/1lH6caLUjcjQhb3P9wcKfY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aea8a44524715be45ca5c5676f6df9a7b02f4d32f3f988bb23eb31db9c33109. 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/74lIwgtkpIiB2cmRTNlObZ.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/74lIwgtkpIiB2cmRTNlObZ.
{"copyright_id":"0xf30d5bc4bcf4050cd3e8f884ba9ed839410401c1387ff272a574ab447920c87d","isrc":"GBKQU2003267","name":"Sunflower Samuraï.","registered_at":"2026-06-08T21:38:37Z","spotify_id":"1GNG8AHH2JkwjdQZChvCa4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30d5bc4bcf4050cd3e8f884ba9ed839410401c1387ff272a574ab447920c87d. 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/1GNG8AHH2JkwjdQZChvCa4.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/1GNG8AHH2JkwjdQZChvCa4.
{"copyright_id":"0x200e1a7ecb69b39b818478b2c1eee6e3fce7f6518a8feeae78cf6f864c5778c3","isrc":"GBKQU2004047","name":"Northern Nights","registered_at":"2026-06-27T09:40:18Z","spotify_id":"1z3mG0EMIRYNCG8HCtKKYF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200e1a7ecb69b39b818478b2c1eee6e3fce7f6518a8feeae78cf6f864c5778c3. 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/1z3mG0EMIRYNCG8HCtKKYF.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/1z3mG0EMIRYNCG8HCtKKYF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb58453a98abcd63010dcdced6265f14f63564a0b2eeb801957130fdc9115b6. 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/4XhgDHlCUr2RSNNq7pU43n.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/4XhgDHlCUr2RSNNq7pU43n.
{"copyright_id":"0xccb9925454da40063173df718b1fcf01968f5238b31ad91718b02ac5b9fce3c9","isrc":"QZES51993470","name":"Images Stuck In Your Head","registered_at":"2026-06-22T05:44:00Z","spotify_id":"7q60d1LP7n5UUouskihaEK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb9925454da40063173df718b1fcf01968f5238b31ad91718b02ac5b9fce3c9. 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/7q60d1LP7n5UUouskihaEK.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/7q60d1LP7n5UUouskihaEK.
{"copyright_id":"0xc72e961df294ab51ac144bd488cb198b6ea1f9f96ac90c5de8c358ab2e362a6e","isrc":"GBKQU2123922","name":"Nagai Tabi","registered_at":"2026-06-10T03:03:32Z","spotify_id":"0wQJWrndTXRockOjSoC5li","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72e961df294ab51ac144bd488cb198b6ea1f9f96ac90c5de8c358ab2e362a6e. 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/0wQJWrndTXRockOjSoC5li.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/0wQJWrndTXRockOjSoC5li.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e6d993afd4888130592f8c67a9f9566fb01cf1527b50f811163885590a553c. 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/1mZEUllcUOj3HUBzJ7TDcy.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/1mZEUllcUOj3HUBzJ7TDcy.