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 0x5111fb18488f9a9aab3050b8ed6543751d94eba19553967af01c782e1f827c18. 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/673e941d-68cd-4c0f-a4d3-fad52384f876.json and https://artists.proofprofile.net/proofs/artist/673e941d-68cd-4c0f-a4d3-fad52384f876.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xcfe65bdcd122478868fce58d44e870ff3b2ed53bd851a0574d6a355a5bd3ac23","isrc":"QZ8B21900315","name":"Time Baby II","registered_at":"2026-06-08T16:54:29Z","spotify_id":"2anHduznxAhVELUdWgEXwX","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 0xcfe65bdcd122478868fce58d44e870ff3b2ed53bd851a0574d6a355a5bd3ac23. 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/2anHduznxAhVELUdWgEXwX.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/2anHduznxAhVELUdWgEXwX.
Into the Light (Medicine Re-Make / Re-Model)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e0a63ed9460ee210aa52b7937289039ca08c2cfad0c38e4602fe04313e1a0c. 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/0n4EJv2MNctHQP4PrSFYty.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/0n4EJv2MNctHQP4PrSFYty.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba8438b6a7bb6058346cb42d25d882dfe031b2a136f2bab7258c790457293fb. 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/6jpoh4RC5NEp5hoilmMs8Y.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/6jpoh4RC5NEp5hoilmMs8Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcbf6f194845fd69ec4c5d2eceeef529b78402249b6a2605dcacdcc95b150d4. 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/7LTs6Y1ucZ3h62RmVMRQwu.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/7LTs6Y1ucZ3h62RmVMRQwu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51209a8205aaf403f7e785b007631a0494f583d7ad5020a81a458ce5d2675ed9. 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/2Bd2l70UjN86W1T5kLEPoV.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/2Bd2l70UjN86W1T5kLEPoV.
{"copyright_id":"0x78b78cea7b35ae4a6dec61877a3e1f2180c79bc73038bac56355feaebea871dc","isrc":"USSM10902847","name":"She Knows Everything","registered_at":"2026-06-12T00:25:12Z","spotify_id":"1NK79ccX32C9I8pm1tVaMY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b78cea7b35ae4a6dec61877a3e1f2180c79bc73038bac56355feaebea871dc. 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/1NK79ccX32C9I8pm1tVaMY.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/1NK79ccX32C9I8pm1tVaMY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77597d739161267309dd495a98b3c772b4f1a04aa5aa0c150a975567205606e. 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/0YsbaVmWfDd2UcKLcG0k5h.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/0YsbaVmWfDd2UcKLcG0k5h.
{"copyright_id":"0xaa86951994aeee5e2ecfc7bba07a38b5c6fc42ae7944d3dd898934e5be13fe7d","isrc":"USSM10902849","name":"Never Click","registered_at":"2026-06-19T02:45:45Z","spotify_id":"0um9zKLDZMBikeZshHCwmh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa86951994aeee5e2ecfc7bba07a38b5c6fc42ae7944d3dd898934e5be13fe7d. 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/0um9zKLDZMBikeZshHCwmh.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/0um9zKLDZMBikeZshHCwmh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bdc13089c2c133d348976a235a1c330550f8304e2599a38209c777153757ba. 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/1BMQHqqDXtUcx7F0mlniJZ.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/1BMQHqqDXtUcx7F0mlniJZ.
{"copyright_id":"0x3b33132ea3fcccbff7a69eb7ae74f8f27537a74b191d09e5672d9b649f5a6fac","isrc":"USSM10902851","name":"Beneath The Sands","registered_at":"2026-06-25T13:51:44Z","spotify_id":"1vQ7gNaYW5K0Iho05TtdsI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b33132ea3fcccbff7a69eb7ae74f8f27537a74b191d09e5672d9b649f5a6fac. 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/1vQ7gNaYW5K0Iho05TtdsI.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/1vQ7gNaYW5K0Iho05TtdsI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad397e4589408922c4808bc8e0dba0557dd84b64a125ef8c353e160768a5b5ac. 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/1KGUfJ2tqjgy1L3PffvJYd.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/1KGUfJ2tqjgy1L3PffvJYd.
{"copyright_id":"0xbe71affaa00cc9001fee1120be3f2fe8057811aa8c4c1abcf762d04feb78e2a4","isrc":"USSM10902873","name":"Live It Down","registered_at":"2026-06-26T11:46:43Z","spotify_id":"1JgYN6imf2KgqmlOvvWgeO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71affaa00cc9001fee1120be3f2fe8057811aa8c4c1abcf762d04feb78e2a4. 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/1JgYN6imf2KgqmlOvvWgeO.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/1JgYN6imf2KgqmlOvvWgeO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb420f398ff598014f59ac85410b3ef7352fbb92bc5af3773f0e32ca6e850b3db. 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/1HbyMJF5sjqYAXaoXB2Vpp.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/1HbyMJF5sjqYAXaoXB2Vpp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9c0f3d2a79e91efc7eb70e8aad9ee142562e3ce80018d14339e4d01a6f0d85. 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/5cUTs6NyKrwFS1Bxx2O4H0.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/5cUTs6NyKrwFS1Bxx2O4H0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600ce88d6365f607e128671e2ba214f02e480c389338c5b7b1328caa5bc36c75. 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/5POktILPfeDIaINBbRvw97.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/5POktILPfeDIaINBbRvw97.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60487f8108b36586c27f23b33d881695319d40fc4f974aea825ebf5d8637fab0. 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/7LJKY9KgcZTy2cEzUf4Tc4.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/7LJKY9KgcZTy2cEzUf4Tc4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea7b802a7948ade113d8ecafcb3182430f64797cf6b43f7ded5293a4b89bc1. 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/6aY6QWaAdwu7NWxsq8ukVT.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/6aY6QWaAdwu7NWxsq8ukVT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b398bf43f922757703dbb49cc0c7509d1bff25d168fd2de58462ab21287613. 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/7cEiGFyPK81TYNWprEgYnc.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/7cEiGFyPK81TYNWprEgYnc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5110c8360bd95e3b9c83091ab571b489b1d643eff7cebc292c7a1882b59d445a. 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/7ybS1W9ORJPYBrDO027hsL.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/7ybS1W9ORJPYBrDO027hsL.
The Crow Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5035a0c90d631eb501fff2101477b66b0024ac4e7ff3f03bbba1e20c1f42b561. 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/5tujK4iuRbqaDQv94ZRH98.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/5tujK4iuRbqaDQv94ZRH98.