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 0x0d1b36dbc9713e7cdcb893ce978c01e4e70b2f2a01ebf63b409e8b3171c165b4. 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/c7839a64-862f-4d77-a186-5e43e0424bc8.json and https://artists.proofprofile.net/proofs/artist/c7839a64-862f-4d77-a186-5e43e0424bc8.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 0xd00d758b96cae637b9bb7ea56600febe7b540b6fc5bfe99a99868bc2515700c3. 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/USDM31687701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25df4fced386bd8b2cd63985fa78a3575581554bedb652c4c49865a07684ecb4. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USDM31687702.
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 0x970ac1d1a9786dd95379e74a68c22fa91100c2204591d8ce3c1f016c028b6042. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USDM31687703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24e6e954070773beee11eff04181ebacfa0deef0f52ab6c369bedc3ea7401ff. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USDM31687705.
About Last Night (Lliam Taylor, Latroit Remix)
About Last Night - Lliam Taylor, Latroit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802416986b7fe1d902ca4d3d57b17f2a78e2576645519b6edc8b6513752784db. 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/USQY51770881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4178767cae9bfde235e6bfe508b35a581fa3d0b12195fde38477f88a1971e090. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKPL1672569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414d3f6ebf837372d3146b10fc02949f5cb433b22a7866191ff6ef41d4b656a2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDM31784701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c87fd12460a33eac99d3fe40a1cc083066a4bf858ecb2517169a79f2399c0b1. 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/GBKPL1663572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178cabf46d017c1af4b06b687fdf2900b39854b778b063c8a083039b42dd41fe. 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/GBKPL1663567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4002802a53b01fad596ffdc6c353d09f9ec2825ca8a61710c8ca63feb705d57. 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/NLF712108651.
Don't It Feel Nice? (Lliam Taylor + Latroit Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71607e5e18a00a2ae299c77e04afc9e5c58d511e1de353d250c2902020d758c. 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/USHR22010501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f220fb86894d36cf6562c3a2103ff8d0b204baa972c9dc9c8b1fdea61c1903. 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/USUS12000089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dc8739f34a8395b3b35524c29bcbdac7d0be9b3e7d00275eb47585803e866d. 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/CA5KR1576244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172c0c2f863ee267f60a766a91ee046f25551636fa05e3675cebb1e258e70a66. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA5KR1576243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0bdb01aa0c031beb5ec7cd1ef7a31d656fac78875f6bd975f8510fe2a0fd16. 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/NLF711606314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a8fa048177acb7736ced0bed4a973668a9eebf6e9900ab6800796c732ef257. 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/GBKPL1670669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74ae57e51460cf71e30f02f34b4ec63cff647a9e3d93db31e4e53c4036ac53c. 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/NLF711604425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935217c437368c74dde9bc7470d22e98ae94ec1dcaa32cf94c24271ac7240291. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLF711604424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7730e253f3b777ef29fb0d25eff1de836333144ce4391121095c2af124ab55. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T20:30:12Z), 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/GBKPL1663865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba75f81ded845dc47fc8bb0e3714ba8f011e0fd7e49dcbca0e2d3f008f31e090. 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/USUS12100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191f411e36129415deb4252217d948b3a32e416047628fb31626cefa3f26d8e5. 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/USUS12000657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3447ae84e81aa90b0d534d2d9e0902057f41221feaa8ae26656ddf29fc468618. 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/USUS12100165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dedec725b6196e8ef6b59364627fbb0c4c5fd6d39582ebf39985838ae1cff14. 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/USUS12000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3166fb6bbf91fa8c6df4c6ae4a641e118eb9491b56819a90846eecb228c0e20. 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/USUS12100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb5a73590e41dada139bc7908a7bc90f5d6446da0572d05710111c4adb70f75. 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/USUS12000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dea7dae38d0b4d380b0beb89619c376c57153b8e5d5dc462ac4c8832f8fd63b. 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/USUS11800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd869eabd3449067a781d288def14aa90029e7d08b121b50d26b47d7be59739d6. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USUS12100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d3bd50bb0cc0be920d297da171ef6ece9c145843819a95ac41be50da031718. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUS12000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2cfb91bc896c0493838ed3a4bad5e6e938e33dfb001a5ab053d5d44af70df5. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USUS12100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0b580ed7a1b578e8d5368215230bcb6d43457daafcc148a5c4c73024b89b81. 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/QZHN72272016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b01f8c1e99bd2c4123a1bd9ccd9c563c92c1a8abeba2711ef523fd18f3e22c6. 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/GBAHS1700542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c5257ad05611960597fa2505c91260c4b8ee6bc7cbb0ad471528183ffc1e3e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAHS1700541.
Taped up Heart (feat. Clara Mae) - Joe Mason Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959ba02edd97dcf4f01be794704444a55f14fb61e12f7573129b7cc12582008a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAT21701672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588bce48865ac12ae88025d4bb35090f5db0e3e6ddf1ea0fd79637068edcfc10. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAT21701674.
Call Me When It's Over (feat. Chris Brown) - K Theory Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdc7c5ba5fff7e26cae220bc2e9c480113631c20939cb4a29810239aab1e734. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USAT21701675.
Armada Night Radio 114 (Incl. STAMEN Guest Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866e74ec839c925c11de4d37b5f4a66a4a2aba546b3c3174322da8ca73f134f7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLF711605490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedca239e7472125e4d8b4a2d10c0c6c616e5fda88f08bad1b854c1e90b7ab693. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:15:31Z), 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/USA2P1839112.
The Thirst (Lliam Taylor and Latroit Remix)