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 0xd2e1c6db3966b99f4a52e65b47c16bd104beedcd2e2158b0615994eb5c97ec3c. 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/75d703fa-15ba-400c-8c7c-9251d069423b.json and https://artists.proofprofile.net/proofs/artist/75d703fa-15ba-400c-8c7c-9251d069423b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concubine Chronicles - Live at British Grove
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 0xbd1dd254ed1afcdd7c65d91d5fa52cf36ce17085a741bda308f2b87cbfbcc9de. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/GBGRN1200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969a6aa339d1a6c236aed8b639142dc5516c1d3272ac45b5c7cd8b5666684a4d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/US2AE1500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89da4513018a7e3cbc6159992dc0693edb693afb21400f882b32702a016e40ce. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US2AE1500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8e8ff4634029272b90bd0eb85f83c29a61ee6298bef24b2d5c8fe526bef42a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US2AE1500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe214804939feeae954ac5764b323ee30516512e9fc16d2e955b1944f90704717. 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/US2AE1500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b554fa6888f742bafee7356684013e9ff8905d5d6eebb6744d30ce733ab51da. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:22:08Z), 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/US2AE1500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445aba90a8f0ffa5c50b1465fcc2d937c9c8cc6a2fe685e52bb125f698a96326. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US2AE1500112.
Bow Wow (feat. Beat Fatigue) - Beat Fatigue Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f584e647eda6eb43e65e203d36e69b80c0e0ad723aa1f432c067709953a4ac. 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/GBGRN1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4ce72a7002d168d33afae000af9ee8a886d4fa612a1961a8ee32883374c156. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBGRN1800009.
Jump Up (feat. Francesco Mendolia, Mike Outram, Dave Limina & Tucker Antell)
Slipped Biscuit (feat. Keith Carlock & Tucker Antell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf765a3df6c84b5eb1f9652876f744ca8f256415d1e12bc4b3071e2b6cc311b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBGRN1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e454d220beb142cee8729f950810e731fb34ff80c82094b7cf5fba324a30f6b. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBGRN2000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e5d57f7cd62d4b1a9eb67b9581eac87f85e46cb2a3d93408a4768c540c7aa7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBGRN2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe9347929982ea6a66916cf31f24ae2f5719288abfa062ec227c85663709d68. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBGRN2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc8c85d13e20bf20804ea28864e1afe9cd487a1f0e684bb8b63f99afe86e251. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBGRN2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d246af7d963ee051c9e01b8ef9cc8c566422495dc243d67251e6ab90f6f525. 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/GBGRN1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08a703f65ce349bf62a8f4e2747c56581448e286e4f3df637d3b67be72e698f. 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/GBGRN2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e982084691c179bba1fe4e9073d9e93a118c6a0cc5d0517750307d100ab9ba. 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/GBGRN2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8e5059275fde8853adab5594567bbdaefb4c59173d632da74cf5fd677c3d6b. 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/GBGRN1900006.
The What Factor? (The Masterlink Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151b6c72bf0c5ffec85fa138147cecd7f5baff5ee3d27dd386178bf700eb7af6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:11:41Z), 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/GBGRN2100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85aa6bf350749d98dabaa11f7b086223f338922fc6eca33f5f78bbfb6960e30. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/GBGRN2215003.
Don't interrupt the Sorrow (Live Masterlink Sessions)
Two Grey Rooms (Live Masterlink Sessions)
Free Man in Paris (Live Masterlink Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd052b262977862fbf786df32c3a22896c326e3fd88c459c478bb32c4dd3666b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBGRN2215007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5775f4dab9cbe75303b4f6cc77445188500993514a94725dc4a3dc13f03b7e1e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBGRN2215012.
Ghostfish - 2024 Remaster [Masterlink Sessions]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93716c6a9d6aae598b95082434f030ac1ec3b9e3969db5918fd969180b2a4fef. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBGRN2415024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a847779987fcee262bf3329d4d91d4d3a10e3fca3332528ea0ba81d82f4deb. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:57:56Z), 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/GBGRN2415027.
The Circle Game (Live Masterlink Sessions)
Joni Reimagined (Live Masterlink Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf113aff965574b9f552c60245b4d36c12c456eca685f1ec94939e3fb0ef67b8. 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/GBGRN2100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2606e3290dd023dddbc862aaed331793dfd0f8f52572cc201c97ae3107fddea. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBGRN2100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250828159cd8d9f1e6d193bb8503c022109c321c99bde95db6015b8fdb2922ae. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBGRN2100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7df62f045b077f14eff101824872a2963e91c408bd5d5053902213d5419374f. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/GBGRN2100321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc78e76ca788cf052b3f3c2e588c0c7ec3ceda7f162b504a27cd1ee07f21629. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:14:14Z), 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/GBGRN2100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e4b1208ac114684496695f4812983c7cb7fe5075736cc19e758559b9401a9d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBGRN2100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf113aff965574b9f552c60245b4d36c12c456eca685f1ec94939e3fb0ef67b8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBGRN2100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c7c8d83b6a40b706bfc6908862666c6f30e4521d089c3018a9c9e11ae09ca5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBGRN2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2606e3290dd023dddbc862aaed331793dfd0f8f52572cc201c97ae3107fddea. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBGRN2100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250828159cd8d9f1e6d193bb8503c022109c321c99bde95db6015b8fdb2922ae. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBGRN2100315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce04c37838f88f04a4b31b728a9bd4e3b2b44d83f51c5a170605d3a74618eeee. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GBGRN2100319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde438788e08cb80889d3dc8ca947dd96d98966d8632f6db1bcab0e0001210c6a. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/GBGRN2100317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38804d96b115b0b2ef8701b69729976a7b1792a5ce127dc1bdf600031b3e44f. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBGRN2100313.
Code 12 (Vinyl Cut) [Masterlink Sessions]
The One True Coin (Vinyl Cut) [Masterlink Sessions]
The What Factor? (Vinyl Cut) [Masterlink Sessions]