David Cook may refer to: Entertainment David Cook (game designer) (active since 1980s), American game designer for TSR David Cook (singer) (born 1982), winner of the seventh season of American Idol
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 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 0xf911a2d5df52b7de56e9d976998f6a8e6d044e33b3e16b0aea28ab7f9647d63c. 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/89ed7bd3-4852-4789-89ab-b9cff9aebd27.json and https://artists.proofprofile.net/proofs/artist/89ed7bd3-4852-4789-89ab-b9cff9aebd27.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 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 0xe11fca4d824a582908d2b3b457583ff67f56b9fdc3f5f85d3d0f8094f5e8f6d7. 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/QMLD61402089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ac54866475ba93a53c40bf5db84da92ab66fa9e93ddf1f523190cd2f32148b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMLD61402091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb6147d061fc475ec3140585fe9b05077280c125276b8b208386bd34d64b99b. 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/QMLD61402092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5221cb70a0a88aaeceeb5aa71b72af7e3b5ac1c52fc40e55134bb7d740edadb0. 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/QMLD61402093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f485375c72c9e18e074b609465c76df96e86e96d8d7f2f179abc7566b76e8a. 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/QMLD61402095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d3834c7ed52a9324fbce2679d7b9a9ca3851fa0f9172adf79aab483ccb1e68. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMLD61402097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36516542f2b006ae0cf5de005b02eb60160aca1ab8b58d0cc4d3e424175eaeff. 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/QMLD61402098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c8c3cfaaac7950f3162adc8e533fc6a518e133642f7bc13a7e5da6d107e21e. 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/QMLD61402100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d4bf55636e6f973ca4db1741f8bd6e1a174903ddb5ad36e70bb07843569093. 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/QMLD61402101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f19243b44e077b8dd97805e1e848ca38a5dd12ad9198a282f240103bfef7aec. 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/QMLD61402102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4e1ccb0a627e3ce2517359d851864450cd79d951e933f41503912856f45e95. 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/QMLD61402103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11fca4d824a582908d2b3b457583ff67f56b9fdc3f5f85d3d0f8094f5e8f6d7. 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/QMLD61402089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ac54866475ba93a53c40bf5db84da92ab66fa9e93ddf1f523190cd2f32148b. 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/QMLD61402091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb6147d061fc475ec3140585fe9b05077280c125276b8b208386bd34d64b99b. 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/QMLD61402092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f485375c72c9e18e074b609465c76df96e86e96d8d7f2f179abc7566b76e8a. 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/QMLD61402095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d3834c7ed52a9324fbce2679d7b9a9ca3851fa0f9172adf79aab483ccb1e68. 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/QMLD61402097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36516542f2b006ae0cf5de005b02eb60160aca1ab8b58d0cc4d3e424175eaeff. 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/QMLD61402098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c8c3cfaaac7950f3162adc8e533fc6a518e133642f7bc13a7e5da6d107e21e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMLD61402100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd3854db85c3a098f1db2262b237f8dcf04a6dc45acb969b39bfcdcd9c09453. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBCTA1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069988c1e84c0e6c1975f948cce2bfbf57cf3b6a45bf8083bc7fa4b7a191ca7d. 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/GBCTA1100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3a41e1a5527656447825bcd86b3657e54d8fbc2f1d6bbe591549e8bc0bb0a2. 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/GBCTA1100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd3854db85c3a098f1db2262b237f8dcf04a6dc45acb969b39bfcdcd9c09453. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCTA1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b630fa7f965d4e326687df531a9b8215c6f779a9cd6a58cb5ffc02c17da735a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCTA0800283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294db26b40f40fcc56b8dcfb9b4b86047617872480792a04db48e7a722195236. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCTA0800282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdde9a63d700934b8053d33fafd79c58ce31009e9f5e23c6ef174a199e67a2e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCTA0800275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fcfb332e922e955de7a82781a970a212691b039a99ba1730c3de47f57f17d9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCTA0800278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc775b746945d2777d2beaa8c7a9c612feeb32166a275ed4bf4a74493b57c50. 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/GBCTA0800281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2be569339f4c227707113748a1cbd962edeb48a5bc658e2efb087fdfa2f9ae. 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/GBCTA0800279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0951b38418a685e1596c9ef78751c5ef38a6085596744ea1de79322e9a0189d1. 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/GBCTA0800280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d8f344c731b64f1dc858007271e54ec705f5756e5b1d5ec2f59bc3e4df7926. 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/GBCTA0800276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde9cbd01c4f896f224102bdeaea4c4425642720d190875e5b02e9e336ce4b0a. 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/GBCTA0800285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd367f3c84916ef6920f62a2df1778ebe0efc35bf3349a504e3f25d865231a9c1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCTA0800284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97703dae9b491644f621367f68bcf82d6cded0427e4d94773b6cd0bcd2ace6bf. 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/GBCTA0800295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9df85f8cc23100d4069611808c7b59c3cae96a35736b00dae4e43fa906b82c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCTA0800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7334213b52ffc4675949ab90a10aec69ea8bcb31030812671220f9a3aa51cde2. 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/USA2P2215795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa2133625cb80a0926d9eda96de77a7d9ddd51d96ccc1b013ff3cab6d76dfda. 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/USA2P2107687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d31b80e1323fb7db5633a769b2d919754440be5b67e90aacce67e6b54997aa. 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/USA2P2107686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c944279fd9a03783932e7dfe0f8320d30e71b9244328f71ca8d170fa55068a. 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/USA2P2107685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48544313cd0788fc5d93afc43c757a4bad03382471bfc1a6e16d55e926f683ac. 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/USA2P1881967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a457065ced161f44bb9b9e60c3ddb28af439e953c4c7700f2bc41c3aa64f15. 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/USQY51794102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe6cba9b59dcd3fbfd385140e376bfa70a7a4c44bd32087ab29ba47db0fef28. 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/USQY51794106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090b5ddd8f4ae77816c599799f3eb7ed8274ba0d86710c359a58400c72d78fcb. 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/USQY51794105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1407bfc7fa927c419818e8b10325be5e7bb21fdaabc132e68c527be0e370036. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USQY51794103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd774e189d4166853762bc11fbd0183fc12ab57c9c9a65e949900f8ade5f5804. 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/GBCTA1100682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a7c7e6ab7a7be2c69821b6ca2cc4c50fbbaf733a60f0f0c6471eb319aa2ee2. 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/GBCTA1000380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9df85f8cc23100d4069611808c7b59c3cae96a35736b00dae4e43fa906b82c8. 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/GBCTA0800153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b9dd00f3e35db447fd893cfb1165bf3c9c45b58435b2bbd65196971b7f9007. 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/QZQAY2402888.