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 0xd3be967d3c1affbcedbfe62959341f27bd979514cf3df3a12866fb189f979d4f. 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/c3ae73dc-748f-40e0-88d8-729d4285085b.json and https://artists.proofprofile.net/proofs/artist/c3ae73dc-748f-40e0-88d8-729d4285085b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x220de0587ac31536b371991181cb0800f62e7aadd4a314a47cd24f6f1081ca2a","isrc":"NLCK42210075","name":"Astrophysical - Lexurus Remix","registered_at":"2026-06-21T23:36:55Z","spotify_id":"3rBwl5nImSOiGIMwz4EG0M","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 0x220de0587ac31536b371991181cb0800f62e7aadd4a314a47cd24f6f1081ca2a. 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/3rBwl5nImSOiGIMwz4EG0M.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/3rBwl5nImSOiGIMwz4EG0M.
{"copyright_id":"0xfcba470a35f755ff787d404b4f8673a92a5f5c5bf37ca2dfb37c74bfa306e69a","isrc":"NLCK42210076","name":"Before I Go - Blooom Remix","registered_at":"2026-06-25T20:16:12Z","spotify_id":"250euDUWOcW2g5MFtTfhaD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba470a35f755ff787d404b4f8673a92a5f5c5bf37ca2dfb37c74bfa306e69a. 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/250euDUWOcW2g5MFtTfhaD.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/250euDUWOcW2g5MFtTfhaD.
{"copyright_id":"0xfd79062b566771575e02f084ed30b9d825202bbe9ab5d8acb53cef804f01ecda","isrc":"NLCK42210077","name":"Afterlife - L.A.O.S Remix","registered_at":"2026-06-23T13:21:40Z","spotify_id":"1gjELEcRo7NpHYZ9zGaqG3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd79062b566771575e02f084ed30b9d825202bbe9ab5d8acb53cef804f01ecda. 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/1gjELEcRo7NpHYZ9zGaqG3.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/1gjELEcRo7NpHYZ9zGaqG3.
{"copyright_id":"0xf7e40761555fd440193d585106993f87a788898b608cb1d3afefcab405630b4d","isrc":"NLCK42210078","name":"New Horizon - Solomon France Remix","registered_at":"2026-06-21T01:39:48Z","spotify_id":"1VyWPN9ztnPBR9cetWezDq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e40761555fd440193d585106993f87a788898b608cb1d3afefcab405630b4d. 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/1VyWPN9ztnPBR9cetWezDq.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/1VyWPN9ztnPBR9cetWezDq.
{"copyright_id":"0x2f8918594237bccd461e1d468326e776993b07a012e0f526af012bdb3cd2cc9f","isrc":"NLCK41098008","name":"Electrify - Jack Mirror Remix","registered_at":"2026-06-22T06:04:11Z","spotify_id":"026t1VAGyNDwt9PfSHqkpP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8918594237bccd461e1d468326e776993b07a012e0f526af012bdb3cd2cc9f. 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/026t1VAGyNDwt9PfSHqkpP.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/026t1VAGyNDwt9PfSHqkpP.
{"copyright_id":"0x640688bb23d8e69476aba5a1cebfac0447c28b44a37a283ec1eca27b7970ab0d","isrc":"GB2LD0902421","name":"Along The Road","registered_at":"2026-06-06T10:27:36Z","spotify_id":"5Ib3O7js3ukLxqz1xcVObF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640688bb23d8e69476aba5a1cebfac0447c28b44a37a283ec1eca27b7970ab0d. 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/5Ib3O7js3ukLxqz1xcVObF.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/5Ib3O7js3ukLxqz1xcVObF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2345f7ea92ae22161d6e139baaa72c54753d9bc533f81ce43cb152e72afbf734. 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/1Xz3Zhf9VChfq1IZE0109i.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/1Xz3Zhf9VChfq1IZE0109i.
{"copyright_id":"0xd73790179973abb3e7eecab448712ae6886eb187af4e4d2afcee8607702c1a89","isrc":"NLCK42221918","name":"Company - NCT X T & Sugah Remix","registered_at":"2026-06-20T22:15:25Z","spotify_id":"1e5R0CzUbgDeJWajOfyrU5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73790179973abb3e7eecab448712ae6886eb187af4e4d2afcee8607702c1a89. 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/1e5R0CzUbgDeJWajOfyrU5.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/1e5R0CzUbgDeJWajOfyrU5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8852f38dece1d6b1ff4b88255b3898b7e5edd9020593fd43da88bd20e07438df. 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/766TKRPiqUHcytXhQdZyZz.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/766TKRPiqUHcytXhQdZyZz.
Electric One (Presented by Doctor P & Flux Pavilion)
{"copyright_id":"0x220de0587ac31536b371991181cb0800f62e7aadd4a314a47cd24f6f1081ca2a","isrc":"NLCK42210075","name":"Astrophysical - Lexurus Remix","registered_at":"2026-06-21T23:36:55Z","spotify_id":"3Yg7FMhgRhZIQkAh2TiC95","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220de0587ac31536b371991181cb0800f62e7aadd4a314a47cd24f6f1081ca2a. 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/3Yg7FMhgRhZIQkAh2TiC95.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/3Yg7FMhgRhZIQkAh2TiC95.