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 0x391b1e511238c7f2287457dbab4dd95a9b10cfbbe6653652dbeb7b81e0688c17. 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/5bf1b67b-083d-4fb0-a1c6-6e335a799eac.json and https://artists.proofprofile.net/proofs/artist/5bf1b67b-083d-4fb0-a1c6-6e335a799eac.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 0x0837ff3ec003e594483314196757e7871b94b5118cc4fdd706cf281d534cb9b1. 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/2EBH3W3h6he2rboLr7j3WS.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/2EBH3W3h6he2rboLr7j3WS.
Band In A Van: Bay Area Rising Live Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c169d4b8f94e2585d013a60ac8348d9438df04cd7ae30615fb84f683c1c3f6. 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/0gMEleSr3efa53VRfcIMKU.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/0gMEleSr3efa53VRfcIMKU.
{"copyright_id":"0x7f5a35d9bc48e500e5e9751a65cb5db86f837a38985e31c7d446752720faa279","isrc":"QZRP42522823","name":"peacefully - live in a van","registered_at":"2026-06-21T17:39:27Z","spotify_id":"3ae8LVRjanVCpdAEZgH6EH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5a35d9bc48e500e5e9751a65cb5db86f837a38985e31c7d446752720faa279. 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/3ae8LVRjanVCpdAEZgH6EH.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/3ae8LVRjanVCpdAEZgH6EH.
{"copyright_id":"0x4946c0d6ad1b7ae01180aff241059e262c22c0943fce295d3f8d1d34c9400baa","isrc":"QZRP42522824","name":"peace - live in a van","registered_at":"2026-06-09T14:26:42Z","spotify_id":"5SY8ixIj9iA0DGdKJZCyKY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4946c0d6ad1b7ae01180aff241059e262c22c0943fce295d3f8d1d34c9400baa. 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/5SY8ixIj9iA0DGdKJZCyKY.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/5SY8ixIj9iA0DGdKJZCyKY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3400cb869418b67cf20ff15a693a6215090977f8587416569653d2f5ee73399e. 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/3wJxxhnRxxpvqHgqOEgbCo.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/3wJxxhnRxxpvqHgqOEgbCo.
{"copyright_id":"0x6fdc52a8a993722f761aa2afbc18291775722683af6eff2bdcd2baa6ce096dfc","isrc":"QZRP42522826","name":"eternal - live in a van","registered_at":"2026-06-20T18:57:55Z","spotify_id":"5U109DWqre3EFIgfW7Pemp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdc52a8a993722f761aa2afbc18291775722683af6eff2bdcd2baa6ce096dfc. 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/5U109DWqre3EFIgfW7Pemp.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/5U109DWqre3EFIgfW7Pemp.
take your time - live in a van (extra track)
{"copyright_id":"0xb8a09d6790f3d9d92b489771edef10a4a01a7e1c7a39374351074df2c63b63cf","isrc":"QZRP42522827","name":"take your time - live in a van (extra track)","registered_at":"2026-06-23T03:35:55Z","spotify_id":"36HPP5W2dt0POcrngBloTG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a09d6790f3d9d92b489771edef10a4a01a7e1c7a39374351074df2c63b63cf. 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/36HPP5W2dt0POcrngBloTG.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/36HPP5W2dt0POcrngBloTG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab556c0132bd564d762be0145c8794577295fcf0758c679b9385755798dad737. 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/4n6Ze3gGcKEZG7yUJM3rSb.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/4n6Ze3gGcKEZG7yUJM3rSb.
{"copyright_id":"0x966521d232112d2bf0d63b7dccdb0a8ee3e648269e1ad2e03ea3de7aeee4fe9a","isrc":"QZRP42522829","name":"real love - live in a van","registered_at":"2026-06-19T04:36:59Z","spotify_id":"7KEZZrFaC7iMXS5AkMK1E2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966521d232112d2bf0d63b7dccdb0a8ee3e648269e1ad2e03ea3de7aeee4fe9a. 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/7KEZZrFaC7iMXS5AkMK1E2.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/7KEZZrFaC7iMXS5AkMK1E2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec19ce2860673c708f9510eb8250a47a5252ac152028fc4b46efee828494313e. 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/6yHqKapsO80sr3hWt1jadR.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/6yHqKapsO80sr3hWt1jadR.
{"copyright_id":"0xdd3325de2431efb0bd07709fcf93191c44880d9238fc62cfb0a8148f8fa9bd77","isrc":"QZRP42522831","name":"say yes - live in a van","registered_at":"2026-06-25T06:49:35Z","spotify_id":"1x9LMIk0UaxL2L3RrDTpGo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3325de2431efb0bd07709fcf93191c44880d9238fc62cfb0a8148f8fa9bd77. 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/1x9LMIk0UaxL2L3RrDTpGo.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/1x9LMIk0UaxL2L3RrDTpGo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4566194234e4b4ab2b594198702968fc6790a8e42f899aa28158b24763182c3. 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/2QfXHjrtEqL9GnGvNaqStU.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/2QfXHjrtEqL9GnGvNaqStU.
{"copyright_id":"0xb8369e406e149f3f9cb68309a0513fc4e153df2d29140a18b50477abd699b1ac","isrc":"QZFZ22056415","name":"Don't Wanna Fall in Love Again","registered_at":"2026-06-06T13:26:05Z","spotify_id":"6jZm6otXeU3SYxP8LYtgEY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8369e406e149f3f9cb68309a0513fc4e153df2d29140a18b50477abd699b1ac. 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/6jZm6otXeU3SYxP8LYtgEY.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/6jZm6otXeU3SYxP8LYtgEY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a17608867cc11333177b4d4b7e5be42d35592987c43888a4687aab7ed02471. 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/3QqdwK6b3QTRIWkT9oNYb1.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/3QqdwK6b3QTRIWkT9oNYb1.