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 0x02e892d6bd7c169a08cf63208ba6507f91e3b0591f1f6214cd751301ee220e07. 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/ee14f184-4a54-48f5-a14e-5f17a6981d31.json and https://artists.proofprofile.net/proofs/artist/ee14f184-4a54-48f5-a14e-5f17a6981d31.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 0x967ff628bb31646319c46e3a3adf81496d28916d8ff06bfc94bba6087f1b59fa. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMEU31716689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76eef69ac12c9d62b6e44222ee70ca93e3ffdd45bff9f2f154c33e095a7582c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMEU31716692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd138d99f06381f6ade6ea6b5fa375c5b7c71a56177487d28119d2cc7d675e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMEU31716691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e28a8d9be2573e977065d6bbee0a24d2df6726a64137210fe55b8992b470024. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMEU31716698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1340c4be7516ad3836a72bab318fe39c9c29ddca0e00c2ee46a982ee29d6e87f. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:07:04Z), 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/QMEU31716687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333f929e361ac02820a88aef0298b8bd0a56c7384f9dc80a06fe5ce839ac52a0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMEU31716699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42752fe1f91c8a17566859efc07a1f8245757fe4d762595b1ef3cd76b4b201c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMEU31716688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a93133d9e7f41e23f1b937c00b2fb6afedb8ebd97e3f0d6e8ccd8fd61f62fa. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:39:30Z), 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/QMEU31716695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b7b39f2905fb362a79bb38a259001a27ae204c05f5c78cbba111d5da26f4ca. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:33:15Z), 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/QMEU31716694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375f0d0b701eeaeedabc19b82100dd1299f67a0d264d00925d9a39704badc4ac. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QMEU31716697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618c7c0ad858ec52ba1861717366cbf2473256e2a3ac362cbed263b6df0a4f4d. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QMEU31716696.
Victim of the Times / Live, You're Gonna Die
If I Didn't Have You / I Can't Think of Anybody but U
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc359077916e3af13d813b3a6d4743e76c5115ca2d1b3bd363f61f20c2f162645. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:30:44Z), 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/GBKPL1810022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e8a0f22ed8e3773dad844480a1010e6ee69e4b042befdbb8f58577e2a9f8da. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBKPL1810024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb156a6b2d3ba774c62adc3b8b2637000f98c19a633ed6e1f4bcd7fd14fd2fcee. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBKPL1810025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6758310052b0d3b25ebdbd7ca6f4e9e8ad76d5a4be7403cf6c5042a96e770567. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBKPL1810028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0866fb5bcb41b4ceaab6b2d8b7e722eff7811dcdf9f20418cbf8aa70391cab0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL1810026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c692ef6db4c12439f91378850c22bd42f3f815a1e1be25cf8b1a3db22b103fe. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBKPL1810027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c76f0dcee5e714f02a5d2a420a69ee8c8634cd9d7b6f08c9ed7506afdf6c7f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBKPL1810029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd35a02c3386e5797bec85372c57850b136da9d63a0e79b809f204b416397150. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBKPL1810031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2829c185d05b0a674b1adec46082efd3079703871e67828b6e7112d6131299f2. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:49:32Z), 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/GBKPL1810032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6983ce732f9a9817b674ae4fe8650f02e7209b76f162729021000ec7bb7526. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:13:34Z), 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/GBKPL1810015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4119c403d12a3b2ab39e53da45ada14bcc6a64ab3705f134a9f6643ff9a34c9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKPL1810018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27456a3225565faaabc824967d1cc47007bd9924ff4d98cac1ebde4173bb58aa. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GBKPL1810019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717d8914d6955e716e3a9a9bfd86f9a745a958cb616359431457a2e3b49436a8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:46:04Z), 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/GBKPL1810021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afc74af77d57acd741219ce547be436b0ff7cb1d189922e41a05aaad58737ba. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:46:08Z), 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/QZDA42002973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd971508e83a66ff299dce9b871f474e65c6c7b961384b59110bc3cfa016c265. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA42002974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76b4194f768be701bc38e7d355bc9628ffc3d2482f8f8a6baa64d4854877434. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDA42002975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0408f797e2131b77246477ec82872d4a1c6c4889fc0e767a3329900deb09b99c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:02:24Z), 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/QZDA42002976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf9b81fbf7614ba0b1d88ba7c43ab2052339a316d9220c48dea24644fb1edbe. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDA42002977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8f9011749333eded11fa46a120ce55897bdad5d6931c82491033a3e581b549. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA42002978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5907cd79dd7268ee57f384f91358ac7b30bdff0cc4c9ab82ecf164398d6cab6b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:07:17Z), 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/QZDA42002979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b2886985e8263384862265ed576d005ecda5cf4fc8642fc4a0bbf4df78411c. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZDA42002980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825304d1b2c04653a254408f5296dae581e192f794bfad68db110a3f7cc9e1bf. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZDA52247873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc537c5c23548cd79d8ddd3213f0d61db68f8ea637efb937c511e185d4962c0. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZDA52247874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed564cef894a4ad8b019398f48683dd0410ffb4b035f253f30abf6080c6c1381. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZDA52247875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf8f191994bd6585f88ec832720875bbd2e5baa8243c177cf9b31e14527644d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZDA52247876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f03a45711eccdb5482e2c366158f5194601d9beb01970af49d91aaa21b7022. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA42351952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9790f653113129a2c5edb30656c9d7732c5acde8b317ea6a52dfac516eacb. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:06:40Z), 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/QZDA42351953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c5af003f71fb497aadd32826d4d9d9794b17aed03a16f104cff76fa235ea03. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:28Z), 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/QZDA42351954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab062a74e2b33ef29e0afd8407c33d39b3baa0d155964725221bdc48696a89db. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:35:23Z), 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/QZDA42351957.