thumb|At TFF Rudolstadt 2012 Hypnotic Brass Ensemble is an eight-piece, Chicago-based brass ensemble consisting of eight sons of the jazz trumpeter Phil Cohran. Their musical style ranges from hip hop
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 0xb7d795812336dd96aef88ee79e7c0f786ae1bb5b0327e7395acf1d0a1038b133. 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/4815d25f-36de-4907-ae6c-90bfa89a739d.json and https://artists.proofprofile.net/proofs/artist/4815d25f-36de-4907-ae6c-90bfa89a739d.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 0x7e4da21201fc7ebc1c35fcfdb8d20d557afbd67e532cbd592c4e1854d0f45240. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USTC80937261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3509ab7e7f92a07de70ce521171b664fc89f4b791a65b5cf9f370a79cc3346. 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/DEZ650900534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034419d69635af7d5a3d6e1a4710ea2291b7ae9735f41110f87117daf9fc8e1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/DEZ650900535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9135169094485b77655ba2a45a486c094f7dc78093e96648df436940dabbda28. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEZ650900536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827d65f2a7c6157187171a384d3ddec75e53bfd6e11ea74f6afd3eaa52e49cbb. 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/DEZ650900537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3556e73d047b872ca2d8ab2b38c49c00d2b9a295f4c91346e0a792d55da369. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEZ650900538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3371914a5141104eec87a59739e35b1d81c741504c170ef12184cd47501116e0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DEZ650900539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72de2b86cf9615f6e79ddd13b0ba544dfa68976b1617b26a3a2e75283e882dc6. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:58:10Z), 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/DEZ650900540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37521e104db7909ed7aea627e1b54d4e8d43d53fcf88f966dce5715f6d96bb9d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAAZ1118331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf460fd58df0f78744e77170f2d269cd36ade162fb866a1bc131def5f9e91eb1d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAAZ1118348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2d46836b2631885c4697cdc5d5cbf87bcda6c4b7d92a8aec158714aa3bfe32. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/TCACM1672362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3794d642c087d3e0f961d78c823b46779f5e6e93592e43045c28c5f3d52acfbb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:53:03Z), 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/TCACM1672365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6069044c0308489bba7a1bfef702af6747acc221d30a1b7eda2e36611b5b41a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:38Z), 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/TCACM1672367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7af9c0f130ff5e94ce287fd77d311628915dcff813dfe8b1cf8fb9bf4dbeea. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:26:32Z), 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/TCACM1672369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e022ac4dd414783bdfd1d173c4a5ab562e60cea15153ebbb6f66ddadb8af0e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:01Z), 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/TCADG1716745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86cb25ab36aa25464ed2f6af2984996e3d45d6900cec9442146313f41c37fe7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCADG1716749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02dde9c81c8e824a796d236499a682af0c50e336b35f4b6ae1cb15d51b01091. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCADG1716750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2127c5cd5ba9ac048b71eecfc1d5d0991886579fe32368199791f902d975dd93. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/TCADG1716753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48461202d7c49b4fc5520b27c64bd47347af108e95ac4d4ba587ae20bd46b2b9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEZ651717123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4d0c3d8fe611c9fbaea2652c4d743d76de89ed118496637d2284f3a54f8ee5. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/DEZ651717124.
Soon It Will Be Fire (feat. Moses Sumney)
A Fullness Of Light In Your Soul (feat. Perfume Genius)
This is a Mindfulness Drill: A Reimagining of Richard Youngs' 'Sapphie'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856467b61ebf5c6f5d301602d1cf2228fa6bc6ca3b8e81f66f9a4eef807f201d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:51:15Z), 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/US38Y2140202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9e9d416e91e95b409c5a0820342af957337868fd1a2e172254fc7a4d2c2a6a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:55:56Z), 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/TCAHH2361158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f361f3d15451c076cceaa221dac3395a5327fd5ee323e07973c3531d034418. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMEU32301706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6a3b7caa12d02b9f33b10f04897bc9572237ea8d88dbb6ee1e2d08dd3b408e. 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/QMEU32301707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c99a959140415516f4abcc4257fcf7c7cc8b4dc802a382e2809d9c969a6010. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMEU32301708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fba90e3a1cdea39fcd52aac52dcafd0f5f2f3146d9aeb1bb3b2604dc107c983. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QMEU32301709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd01baad86cd6294cd3e65229369c353c3fb6706f8a0f9b759976838961761b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMEU32301713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46590575c9a350ed37f20cb226c01f3b0be64efb1a8249669e0a6104abef33d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QMEU32301716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cef53898117b8b5d03933240bfd53e98738e99ec06b9beaed783c11c1ee338b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAJG2580958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dd3af56b8f908148584b11d41c27453e69db0f14c8abde1ca1a745412b9a9f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAJG2580987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd4d1047e5a251123798259d3161a5eb84c290e938601decea0090b8911ff6e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAJH2581113.
Welcome to the World of the Plastic Beach (feat. Snoop Dogg and Hypnotic Brass Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196ac4af69eb65632b5bdebe8eff1f4b07c143ee341e1cc5b063bfb231725f9c. 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/GBAYE1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023ac9caf83fab4aaa6f16dcca1241442f61afa24a7f712d598affe82769c475. 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/AU5X21100001.
Sweepstakes (feat. Mos Def and Hypnotic Brass Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17896d44a2ad8ee6a9316ab8eba7a6d5579aceea5179b5ecef5250084960817b. 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/GBAYE1000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f0095d214358868b540d1f60cbd409983fbb670cb7537e3deca4d21fa24cc4. 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/QM6MZ2113143.