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 0xf18121a9438ba31950ab8ba96a6c9db1f83dda1b6fffa6f208660452fe2f0cde. 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/25f11b07-125c-4ef3-b66c-8e28e7f293ab.json and https://artists.proofprofile.net/proofs/artist/25f11b07-125c-4ef3-b66c-8e28e7f293ab.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 0x4e240eb8935a38d97d5aab46536a7e68464f0395022c1525a93442e192c7f4a1. 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/4S518ci8UY4op0Xyp6Hx6o.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/4S518ci8UY4op0Xyp6Hx6o.
{"copyright_id":"0x3fbe0b74afa216f28e6ea72409e5093255aa0de888accb6bf0f48e70414910c1","isrc":"USAT21001570","name":"Knee Deep (feat. Jimmy Buffett)","registered_at":"2026-06-01T05:26:20Z","spotify_id":"60IGhnH20N82dNxKnc8jDd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbe0b74afa216f28e6ea72409e5093255aa0de888accb6bf0f48e70414910c1. 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/60IGhnH20N82dNxKnc8jDd.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/60IGhnH20N82dNxKnc8jDd.
Everybody Wants to Go to Heaven (with Zac Brown Band) - Live
{"copyright_id":"0x2a386493030f281a6861ec518be330287f5cbd2262caa5ed9bbf21f2f3d4a8f8","isrc":"US6XF1700013","name":"Everybody Wants to Go to Heaven (with Zac Brown Band) - Live","registered_at":"2026-06-07T17:15:28Z","spotify_id":"1ffsISFmdQM8WERaHQvMMk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a386493030f281a6861ec518be330287f5cbd2262caa5ed9bbf21f2f3d4a8f8. 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/1ffsISFmdQM8WERaHQvMMk.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/1ffsISFmdQM8WERaHQvMMk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72309b19200c74663ea3b2afc7258231fa72ab0d3b9e0f83f8b2477f9bd972a9. 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/2kR18wsL3gvXRXdNE4dCGc.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/2kR18wsL3gvXRXdNE4dCGc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa818eb1e00c7ca714964f5fcf6e3421d67091926a5f757f6ebc4719ebb405b5. 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/3U3aTPj6T4IEmCMJREe3e1.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/3U3aTPj6T4IEmCMJREe3e1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f35e2a67276568c4dde802d074b8a507c3c86124953b3e6955b9cd6564008a7. 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/5GYFgz8QsRssKk2ONcvnpo.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/5GYFgz8QsRssKk2ONcvnpo.
100 Greatest Country: The Best Hits from Nashville And Beyond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5813a2d7024ba7e1041590b24061f51b9f6755a23d42fed0f21d199e7fcfa233. 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/0eFU9AlTKl4W2pDvC8YlZW.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/0eFU9AlTKl4W2pDvC8YlZW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5813a2d7024ba7e1041590b24061f51b9f6755a23d42fed0f21d199e7fcfa233. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KfD3EGRqRLygCAo5N8nhQ.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/1KfD3EGRqRLygCAo5N8nhQ.
Forever and Ever, Amen (feat. Zac Brown Band)
{"copyright_id":"0xa72c517e98129601d43b56b5adaaa56c516b7101ec361bb24089d4d4f70e693c","isrc":"USWB11100675","name":"Forever and Ever, Amen (feat. Zac Brown Band)","registered_at":"2026-06-04T16:14:57Z","spotify_id":"3OUn0smHIPWTvVj0P8ztWd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72c517e98129601d43b56b5adaaa56c516b7101ec361bb24089d4d4f70e693c. 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/3OUn0smHIPWTvVj0P8ztWd.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/3OUn0smHIPWTvVj0P8ztWd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855780de9c1eea05bbf19e591977669f16432a4403aa06bc81f3b14d61108076. 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/7ocZuwV6TrdR9VLs66bPAz.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/7ocZuwV6TrdR9VLs66bPAz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea2dac4ba667c65c277b4044e74d97302779027629481645e58c2a8d18fe688. 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/5mhW03yGpDpkYHs9aZaxSE.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/5mhW03yGpDpkYHs9aZaxSE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f942df10fd16a1a6e0c7496dc08751f4b8b452623b70077fcaaa9937853f40f. 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/7fhB7QhTBMlANw4M41PQHS.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/7fhB7QhTBMlANw4M41PQHS.
{"copyright_id":"0x72b6811dd612b7cbabb753b602f04775f55e9e7d99deef47cca061464c5c2d96","isrc":"USWB12101839","name":"Out in the Middle","registered_at":"2026-06-04T14:49:55Z","spotify_id":"2Dacmfq3VLY1miVcU2SMIt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b6811dd612b7cbabb753b602f04775f55e9e7d99deef47cca061464c5c2d96. 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/2Dacmfq3VLY1miVcU2SMIt.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/2Dacmfq3VLY1miVcU2SMIt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86509bf473a049144d9c65e92a69f9dafb257073b4e56767cb447e40d62abf73. 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/25Pnn7yc213pC2sFUaaINZ.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/25Pnn7yc213pC2sFUaaINZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350aca0878db56f929296246778f04031bde3d430815675837524d9559286e8. 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/5Pk7Tr5mqvgwaaVlv6BB52.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/5Pk7Tr5mqvgwaaVlv6BB52.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c56f68b1a993f6f5258407ec5ec41024268e93a13c5d24f91da4daf1749a1. 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/4HD9SLK4s9rwRyuFt3n8N7.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/4HD9SLK4s9rwRyuFt3n8N7.
{"copyright_id":"0x7efff937a5c4dc9254fb7c8a04e1893f87c1824563653867b765faa244d95dda","isrc":"USWB12102189","name":"Stubborn Pride (feat. Marcus King)","registered_at":"2026-06-04T13:06:04Z","spotify_id":"4m0Rx8rOqsBCLYkDbPBM4C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efff937a5c4dc9254fb7c8a04e1893f87c1824563653867b765faa244d95dda. 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/4m0Rx8rOqsBCLYkDbPBM4C.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/4m0Rx8rOqsBCLYkDbPBM4C.
{"copyright_id":"0x655ca8091b5ac1cb2911b3c4df33cb5d9547a29b3cbbc5df7569a9cb1226f1f5","isrc":"USWB12102685","name":"Fun Having Fun","registered_at":"2026-06-05T20:41:40Z","spotify_id":"14oBDeANKewg2emb8lGXYC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655ca8091b5ac1cb2911b3c4df33cb5d9547a29b3cbbc5df7569a9cb1226f1f5. 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/14oBDeANKewg2emb8lGXYC.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/14oBDeANKewg2emb8lGXYC.