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 0x009b61c0270f2a18efaa351c18a313195a2f8d9af7464e7dee5c32e56e51b7a1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e63897-d33f-441d-a621-965264dd73f6.json and https://artists.proofprofile.net/proofs/artist/32e63897-d33f-441d-a621-965264dd73f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Colour By Numbers (Remastered / Expanded Edition)
{"copyright_id":"0xf6c8e14ed5bed23f2f64b7c36dbd51f4bc070155a0e317a290758d00b02b0ff6","isrc":"GBAAA0201011","name":"Karma Chameleon - Remastered 2002","registered_at":"2026-06-01T04:11:51Z","spotify_id":"2wSAWEYUHkt92X4SBAPqZE","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 0xf6c8e14ed5bed23f2f64b7c36dbd51f4bc070155a0e317a290758d00b02b0ff6. 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/2wSAWEYUHkt92X4SBAPqZE.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/2wSAWEYUHkt92X4SBAPqZE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c9aa735c18d1d1f801610fb91ec6f22e341fa85f9b90120a61f3316e7608b2. 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/0vmbJCS1WCWnj9232fyMrv.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/0vmbJCS1WCWnj9232fyMrv.
{"copyright_id":"0xbbd03f09bd493185a84e5c384aedb1b15921acd6110e7086774c6100fa7fad3a","isrc":"GBAAA0300604","name":"Black Money - Remastered 2003","registered_at":"2026-06-08T10:43:32Z","spotify_id":"0k2OTYBacmwXx2eyQuxxh6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd03f09bd493185a84e5c384aedb1b15921acd6110e7086774c6100fa7fad3a. 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/0k2OTYBacmwXx2eyQuxxh6.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/0k2OTYBacmwXx2eyQuxxh6.
{"copyright_id":"0x27a3cf453e1a9ad0eb0e5155987f1b95c0796d3c62143ab3e3aea86bb7225c29","isrc":"GBAAA0201014","name":"Changing Every Day - Remastered 2002","registered_at":"2026-06-09T04:47:00Z","spotify_id":"6XMyKB6zYAlTjZjUfGV790","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a3cf453e1a9ad0eb0e5155987f1b95c0796d3c62143ab3e3aea86bb7225c29. 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/6XMyKB6zYAlTjZjUfGV790.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/6XMyKB6zYAlTjZjUfGV790.
That's The Way (I'm Only Trying To Help You) - Remastered 2002
{"copyright_id":"0x2a9f6122566364a1b8965eb96c4f655da178f721b9073da1dfc64a7f90b3db42","isrc":"GBAAA0201015","name":"That's The Way (I'm Only Trying To Help You) - Remastered 2002","registered_at":"2026-06-09T15:45:34Z","spotify_id":"0VqL3yj2NJZZofi4ZOnRyD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9f6122566364a1b8965eb96c4f655da178f721b9073da1dfc64a7f90b3db42. 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/0VqL3yj2NJZZofi4ZOnRyD.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/0VqL3yj2NJZZofi4ZOnRyD.
Church Of The Poison Mind - Remastered 2002
{"copyright_id":"0x21ec1c93dd539679a67508b07b5dc88484c895a02b5073fa3722e6b842782373","isrc":"GBAAA0201016","name":"Church Of The Poison Mind - Remastered 2002","registered_at":"2026-06-04T10:23:07Z","spotify_id":"2DEEMhTiUMvkiHFdXkrKfI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ec1c93dd539679a67508b07b5dc88484c895a02b5073fa3722e6b842782373. 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/2DEEMhTiUMvkiHFdXkrKfI.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/2DEEMhTiUMvkiHFdXkrKfI.
{"copyright_id":"0xcf74ed6f90e7997e79f9aced96a6307a4ca9a8c17e4f77554bc742c161b03d9f","isrc":"GBAAA0201017","name":"Miss Me Blind - Remastered 2003","registered_at":"2026-06-04T06:47:17Z","spotify_id":"56SnVQVuJuqnYA6rLdcg32","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf74ed6f90e7997e79f9aced96a6307a4ca9a8c17e4f77554bc742c161b03d9f. 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/56SnVQVuJuqnYA6rLdcg32.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/56SnVQVuJuqnYA6rLdcg32.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77e9996f645a6fe42baa1c26806667cdd2a021698ed3e71c0963b7671553f88. 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/2TO8HzqZsIZzJvF0sksfZZ.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/2TO8HzqZsIZzJvF0sksfZZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc5a75818e84a6440c726de7481515eab37ce7c52289265ab3b7b0568d13ff6. 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/113xwSLnNTC4hHLCRKztoT.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/113xwSLnNTC4hHLCRKztoT.
{"copyright_id":"0x067b04ec6b8c95559ffd1b95ad1288dec423e9e1d6f2a3f6ff08bea543a08b4e","isrc":"GBAAA0201034","name":"Victims - Remastered 2002","registered_at":"2026-06-04T10:51:52Z","spotify_id":"7Fvd99niN50w4auw0MOTqK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067b04ec6b8c95559ffd1b95ad1288dec423e9e1d6f2a3f6ff08bea543a08b4e. 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/7Fvd99niN50w4auw0MOTqK.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/7Fvd99niN50w4auw0MOTqK.
{"copyright_id":"0x61e8cb0d49d318cfb9489aed38b4ee2db0f53f9421a12371a1fceab164290671","isrc":"GBAAA0201020","name":"Man-Shake - Remastered 2003","registered_at":"2026-06-21T00:32:52Z","spotify_id":"0JG3X3YQMLWxZKERONMnS9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e8cb0d49d318cfb9489aed38b4ee2db0f53f9421a12371a1fceab164290671. 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/0JG3X3YQMLWxZKERONMnS9.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/0JG3X3YQMLWxZKERONMnS9.
Mystery Boy (Suntori Hot Whiskey Song) - Remastered 2003
{"copyright_id":"0xeee02c449d4c61f2fd601da9b589ca90c8a7b803c605b2edd5a71308d36a1bfa","isrc":"GBAAA0300606","name":"Mystery Boy (Suntori Hot Whiskey Song) - Remastered 2003","registered_at":"2026-06-11T04:30:44Z","spotify_id":"7zaarUjeAeskntlaPbhASZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee02c449d4c61f2fd601da9b589ca90c8a7b803c605b2edd5a71308d36a1bfa. 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/7zaarUjeAeskntlaPbhASZ.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/7zaarUjeAeskntlaPbhASZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29822680247da27784669ff3e195f3c98c0aa6b5b0c34b48deabc8c54ce4104e. 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/1TXL7vXv3o493LXgF9t9NE.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/1TXL7vXv3o493LXgF9t9NE.
{"copyright_id":"0xeac3d134b7f5bdb02d987fa7712cef07db0798fb5bdbd25c925461018a62f10c","isrc":"GBAAA0201023","name":"Colour By Numbers - Remastered 2003","registered_at":"2026-06-11T04:28:08Z","spotify_id":"3mdrNj6Whf6jDdB09HdcIq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac3d134b7f5bdb02d987fa7712cef07db0798fb5bdbd25c925461018a62f10c. 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/3mdrNj6Whf6jDdB09HdcIq.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/3mdrNj6Whf6jDdB09HdcIq.
{"copyright_id":"0xa69d54979f9282cb1a91033b778b737a2083a81a1db9c1be71b2cdc957d44a00","isrc":"GBAAA0201024","name":"Romance Revisited - Remastered 2003","registered_at":"2026-06-20T19:09:33Z","spotify_id":"5N66tqzWRCUOcutQLhA4ei","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69d54979f9282cb1a91033b778b737a2083a81a1db9c1be71b2cdc957d44a00. 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/5N66tqzWRCUOcutQLhA4ei.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/5N66tqzWRCUOcutQLhA4ei.
{"copyright_id":"0x7b863319c8abbc9018c1cc81db8e68dd6c65046c1e10e6822bcfb34dfef28f8e","isrc":"GBAAA8300010","name":"Karma Chameleon","registered_at":"2026-06-01T13:35:47Z","spotify_id":"4NH4xiPQ7TqNGqj6pZV4ki","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b863319c8abbc9018c1cc81db8e68dd6c65046c1e10e6822bcfb34dfef28f8e. 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/4NH4xiPQ7TqNGqj6pZV4ki.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/4NH4xiPQ7TqNGqj6pZV4ki.