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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc652a0357dd2a3e13ac8d60b7973e06b5d6be82caa901653f595b83f729c2eaa. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU1449655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68098fd0fc487a897bc53cf8e10814ee2f33b72d9696aa66b767ecef7a226a5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1449656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa614a212f69acf50e4312f3f22afe83484f483cd3209793c45f6547af588334f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1449657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815d84d123e36a25a0fef6b21e10f4898535d56fa958e36571b6a0fe24f60580. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1449658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f97ec9c39c85ae3b68cbf975f44a89aa21cbd41b43d3fcdb6308eea15f7439. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBKQU1449659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9bd45ac5ffabb3d9e05ccc3b4328cf49ae8716325dc5cb745c1ace42189aa4. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU1449660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2572c24e23470e09bdd12eb894eb22df9ee347d3e2ecc2fde527e54147e1a90b. 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/GBKQU1449661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9410687e7d607ef2c497a8a04422dae1afc55d5a0e21b6b7abdfafca32085a08. 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/GBKQU1449662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e4377157c60e505244d19bb2154b8e5ed224f4cd0ce22badb0ceb76b266a44. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1449663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7a5dfe375e88f538ebb88d0a2b18498543c0ab2b6efdac7e587a2ce1a654f0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1449664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ab1bf26523b3ff86adf381aca2e30df95cc65fdc1cecd8a93f176f74552c37. 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/GBKQU1449666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9882048801a9ba2aef315bfa0d38de942262b005d6e0c18ba225af0bcdb7c8. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBKQU1449670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6146d78f7ef1d45c6c9c052a4521b8ee4dcef6bd5c18ac47bbf8bed57a1daf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1449671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52208453f95a7c2b66050dc5477cc08f93fba9f768aadc030407e4dab4911f82. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBKQU1449672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1557c16833344478c3d1d8d84b72a3bcb867091f97e398dc5147bde9e10af. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBKQU2077544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3fc1aef866df2c3d6aa20d5f3601930fc4661b308d2c15c8ad8961e4bfc330. 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/GBKQU2077546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad1a16ede4a11c2fc16d3560b57ef3a80ca87b2c40cff2892a0d8ac7b725185. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU2077547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a158f81a4a88fe8fa7082249208cf0a776dcb4761e13587cae7daa1d9eb7d7e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2077549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f71ebfb092b608d2ea75417f358636e276698cce12482f821a2c6665c46d4a0. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/GBKQU2077550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e49ede9d824bfa45e6e44691ffdd9d87fcf66584abbee598f68d98e68b60cf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU2077551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfeaf1b9a065894bd09f1e9e6026bb2376f1d387e6015f78ed78ea48b3f9b4f. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GBKQU2077552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e89247f297d4341683deb90b8200a5d0e79ad3e3246ee4e9ac7984e9bf1c61. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU2216376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c7885b167bb0d7ab0c95662620f467918d0a3c663d1d5a589deeef6b65b12a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2216377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8e4d992cc062eb40d2a82fa664f245258581d868b7085d4528700f5edc4122. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2216378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d1d2e2d62707f2b44e5b9874345ce3b0d06f2edec2d83bc0873218eae7de7e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2216379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf204423b47d68c5ea31d786696cb5bb8349afe1eb2112394279804fbe29563a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2216380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db018ececde44d5ff2690337bbc5e655cf8bf35c1688e2f983617eca66765df. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2216390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07454daff974eeebdc3a3330ee15693efc31f03971ed521921ec2bcf05ad29ac. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBKQU2401594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00909b9021181cb95745d72884fc4b776536d21d3a5c8e6fc8165a2aa45722f0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBKQU2401596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6706e5f2f8fd61dddce5da08d254ca5668cc387196692b21d6774a6f2087315. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/GBKQU2401597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9698ddb3107b54568716a465fcc05b619d603293d8b1aaf69f484f3760dcd3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2401598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d6436e4c69b3d6df9de3ff82ed6d774c8f0c9ff6537e855802d345108852d2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU2401599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034c864e27005e6240f402c73b447c32647da5e9232cc6fffbd2c1afafb11bf3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBKQU2401600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9708e2a7381b9056113be94fe41deb2efcdf0aad8d85f4aba2136b85da913fba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKQU2401601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f71f3a67f7141117a3a32300397640b807482a6087d5ded4a04135d8053e8a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA2P1819496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ec3a1cdffe78b9b1e69e3d905379fe1dc5bba3bd6b34cb1dca911d29345c14. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USA2P1819511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aee9250c08bd1f1166271204c5f4ec6063715fc4ebe7f57fcbf1920bee3745. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/USA2P1819510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e3bacff8e53811290aa14070dbc60ae0a7afe734bef3002e91dc4badda72b3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P1819509.