1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xda5ce25dd35abb9b0e8c2895b8b7ba1ac405a68fbcf1847a71391199abf1de84. 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/8e37a705-a442-49a5-b74a-8c0f35ed072d.json and https://artists.proofprofile.net/proofs/artist/8e37a705-a442-49a5-b74a-8c0f35ed072d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4af75a385ad3ac2efe03a43ec19bd0849e16976289b3c8a2ec7fb17b1b34f9. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2279842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5727e7ec4779a998507edfcdb5873f3523a3a2d105cfc356f0dd1c6d94725a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFM2194860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ab5060b5a115ad7153a7612ebe1d87347d104ee2c16ee997d376333c04a79f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2013529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9229f97706ec8d2b21cc00899cb4de2d4acfff1ce51d05c909f2adadc8ff6ea6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2219062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc91da549261e620c952e914a02117c98fadc59943ba5af1a35682264d72bd6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2030578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d553646e945d0bf78246965918265adec8bc30c99c24955d3fb045d29bda23. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92415522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d80d6bf96f48139caa67cdea67ead9532857e15ff7e1af3afffb0aeaddac4d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41868547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ee47e57c4bbf1ed4f3f1b6da889fd643cf0f5b164215a79e89c4c1c2ac9d9d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41868548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5101c89d2f19f766d4b0995b1eb5c784749d0a3198d214e4497739bc98325dea. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41868550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4a8b621725dd994e27a79a76b1d3a79345f5b179601acad7e9f0ed3c02bf86. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T18:02:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41868552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2013dac5c436c258288cc0ed3e27235089c47b9734c78827910f0a69365cb30f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41868553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ab98d6422f338fcf89299f17c40063edf8a5e48f58335665f62821111c498f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1258257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d6856ecff91a012594d8649bb114bfd1e97642cbe08bedd4a8ab37f5b10769. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1258258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a04da2b98fbec318d4995f73726d259b953e36010f7a1e58f16d21131559151. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1258259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ae83d5f0b2b8c43aa3805585fec4282b4474d4d1166a744e8df7556e52783e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1258260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336cadc2727f041949d400ab37c897ec8d195809fafcccad2bdfda62c764f471. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1258261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2528b6a018dd709fb04b871880247b7668fcd45a167a07c0bb6e26c72abb5998. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2486783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b0cf8a5385270eaa7a8b6c5bb16b1ed992da70e042682085c409043256aec9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62239859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189b0960203ad0916a268f11efecea43e87b42b7a815daae59f0ab0cc3cb129. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ52018586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe266f3758bfbaabd587115a9fd750db48b0b8287cbff8693195c750eaa1d4440. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2199773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fa2f576c82a93147466cde6ac9cf5e2b31d21887eb8e75915c024b4dcfbbc9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2120214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955b3bf14e2b3d3c0672b7a581d50faba54e3e887a1db1b30f7190570635763f. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:56:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR0012720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe266f3758bfbaabd587115a9fd750db48b0b8287cbff8693195c750eaa1d4440. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2199773.
Tides (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189b0960203ad0916a268f11efecea43e87b42b7a815daae59f0ab0cc3cb129. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ52018586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8557bdca2059c45a80d9b590b2466faabbf0cdb25adeb66f1cafd1ef89d2a8b8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2081662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b637ada4bd7e269e55f00f776f835f29f40cdbfdb94eb6620f88503f850faec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81914899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a7cd7a225bf5d319b0a59dc20eca0477fa782778e6151ac6e763b3fe8f92ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA61922293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1dfbda07b8672ce12293223e943bde0715999bcb6e467a3de2284caa1b584f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1908716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d0d3632965dcd3bb32532f51592a5ac9b3c4171fb90156102c87e2d095ff87. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81864640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6668ee0872157c998e12326318ce1471464bfc235741c013d4574e96b01559. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81854497.