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 0x28b93fcc13248091df6bacd9065022e442bdee1740227359d0ae3323db0fff0e. 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/eb1ee023-f0b5-48a3-9570-da0b23313457.json and https://artists.proofprofile.net/proofs/artist/eb1ee023-f0b5-48a3-9570-da0b23313457.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stripes + Squares - Penguin Prison Remix
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 0x18929821fb7589849fb852125b4204713f8a49eef5b77624990f4d24591887d4. 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/2R79lb5TraFZ356OQXGCnI.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/2R79lb5TraFZ356OQXGCnI.
{"copyright_id":"0x79fa5072dde504ec44a929fed0724fbbaacbaaeeabbb9c8965521382e75f5715","isrc":"USLGZ1700023","name":"Beach Break - Sofi Tukker Remix","registered_at":"2026-06-04T15:32:02Z","spotify_id":"6u7jxf89VKJ3VfrNojSHJ8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa5072dde504ec44a929fed0724fbbaacbaaeeabbb9c8965521382e75f5715. 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/6u7jxf89VKJ3VfrNojSHJ8.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/6u7jxf89VKJ3VfrNojSHJ8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0152a32a06fdd1b78dfa310db836d257a770baf6fe656dec222405e00a138478. 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/4200m8hSGLb4QK48an4vSt.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/4200m8hSGLb4QK48an4vSt.
Smooth Sailing - French Horn Rebellion Remix
{"copyright_id":"0xd55eba4809fa738a5b5da055b4dedf569bcb29c05fcd32b327bdce8c5dec85db","isrc":"USLGZ1700039","name":"Beach Break - KNKS Remix","registered_at":"2026-06-07T14:24:28Z","spotify_id":"2c32TY6su3q4f2XrLVRPmE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55eba4809fa738a5b5da055b4dedf569bcb29c05fcd32b327bdce8c5dec85db. 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/2c32TY6su3q4f2XrLVRPmE.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/2c32TY6su3q4f2XrLVRPmE.
{"copyright_id":"0x8738a1fe78b6a8ad1a037992828aed6a15b87fc570a2747160fc3df2fb6f5e78","isrc":"QZWFM2333044","name":"The More I Play to You","registered_at":"2026-06-18T03:46:28Z","spotify_id":"1Ve6cvsBGfxL43zsUlAG0o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8738a1fe78b6a8ad1a037992828aed6a15b87fc570a2747160fc3df2fb6f5e78. 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/1Ve6cvsBGfxL43zsUlAG0o.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/1Ve6cvsBGfxL43zsUlAG0o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a50ad4cd0248dc711e3548c1fb1c5d3272ce50b94a565dd64e170b4974cacbb. 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/4RZExYWr4eRIvVdQkh3jxF.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/4RZExYWr4eRIvVdQkh3jxF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad71fb825cd476d279494f0d0120193031d3dd895064064481b2b4ff9be65367. 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/1YE11odjw4oSvGr53KbOgG.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/1YE11odjw4oSvGr53KbOgG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1204b9b4d32d22d2745dbf7f67fa058d0c8e366cf5e82e8b3b11e17276cf8a38. 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/3oAfn52qo1xqr6jPgQT8Qc.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/3oAfn52qo1xqr6jPgQT8Qc.
{"copyright_id":"0x83e213e6a5ee195baa8d72abfa2789ebded83d495f102f92a0595d62621c1176","isrc":"QZDA62128460","name":"Alive - Banyan Remix","registered_at":"2026-06-20T23:57:41Z","spotify_id":"6hsekCJBSxZxoc9YNL9abG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e213e6a5ee195baa8d72abfa2789ebded83d495f102f92a0595d62621c1176. 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/6hsekCJBSxZxoc9YNL9abG.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/6hsekCJBSxZxoc9YNL9abG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2452a9585135a974726aa0f3430658d8ec41281d0ad8ec85531c991cb71462. 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/0ChktvrEe0AyPTqIpszS9E.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/0ChktvrEe0AyPTqIpszS9E.
Run, Run - French 79 Remix Extended Version
{"copyright_id":"0xe69bbbb89e9cf966726dd6adb064e56e156ed622364ab20207f1b823a0c66683","isrc":"FRR642400758","name":"Run, Run - French 79 Remix Extended Version","registered_at":"2026-06-08T05:26:39Z","spotify_id":"0vFwk4Yeqi2PiFETK7ZUDQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69bbbb89e9cf966726dd6adb064e56e156ed622364ab20207f1b823a0c66683. 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/0vFwk4Yeqi2PiFETK7ZUDQ.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/0vFwk4Yeqi2PiFETK7ZUDQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad71fb825cd476d279494f0d0120193031d3dd895064064481b2b4ff9be65367. 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/7a0suLGVvHVHigyksiMt28.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/7a0suLGVvHVHigyksiMt28.