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 0x8f0203e69e549bcd37d46ffef7878a948d731fc9a052a51709ac1729ec3d38f7. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/311c8fe7-b710-4bc6-a05f-2378ad58619b.json and https://artists.proofprofile.net/proofs/artist/311c8fe7-b710-4bc6-a05f-2378ad58619b.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 0xb045137be753f333266885a0f8bc5377576f44d7e279b14d5ba6ba9665faa904. 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/QMSDU1900074.
Life Without Fear (feat. Worldarama & Chubs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c5a9a6a5b965f79ce33bb4a926fe2650b90fdab5fcbe9dd46669ba429327b2. 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/US2R20400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a8418cc6d6e063307ee08ca78b9037ca7e805ee69bdca5e9f94f3c6a27bed. 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/US2R20400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd5ac484a597b75854a68c84d45d922abbe9632328e10ec28fd9347f9ffb08d. 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/US2R20400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087dbbfdcf139cacb5fd28a1e635370ffd52d188aa49cfd2d3a28209e7d5f934. 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/US2R20400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c339fdcd6882339806fb342cf63a78210ef68fb1447c1cafc6f49a9682f815b. 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/US2R20400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fccf3a6731e27c0ae109207c74737d73d40b68197c8cac596bb5f6c42320bf. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:31Z), 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/US2R20400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8143214283835fabad65a48c7c351f64f0ca8b17e7a5d5bf438ac66fe3014a0. 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/US2R20400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff441c1bf2e1556b09deab439f6b5b9916cad783c3e2a1627bf7f96994f65e23. 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/US2R20400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4392059f17ed294d8d2dfeaa4fdd866f79c622123b0a53ba9a7b548206eec1e. 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/US2R20400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4117bee319b50f730387d80b8aa1782cb8510806c80336d0ab56689f4a6eb1b. 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/US2R20400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470cee544ee3a2d3405d68a8ce6e130c0e8ef1a412a2898299c4379aaee0d071. 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/US2R20400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdada7922c9bd36b09c44826703a72e68ba5b6387f1724495c534414afc854639. 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/US2R20400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d95cd7b51331663da665ec816dfeda34e764fc1998e3805c82dbad77d2d4d60. 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/US2R20400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b71606fcae0550836b0b9f4fdf6cf2515d2f6ad7b81265879646a3c7e9ad017. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US2R20400068.
Hip Hop Instrumentals: From Old School Boom Bap Rap Beats to New School Trap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfdab098537b10ada726f2844da585aaad1ac04c3460769a0c24027c8df4ab8. 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/US2R20400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fca06b33621631ba51b410fb3cfa3c727c6429b7888f05aa9c5bcdac45986d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US2R20400217.
All Out (feat. Phil The Agony, Krondon & Mista Sinista)