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 0x846f7ee7771158dab0220289acff90307fa4fbc9e68a9f94a944bc251529546a. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/432a6b8c-38fc-4c45-8f13-4fd1e3badc9e.json and https://artists.proofprofile.net/proofs/artist/432a6b8c-38fc-4c45-8f13-4fd1e3badc9e.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 0x5603142e76119fe3e694408f06ff19a349612075058a0736071746143dca0952. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR9W11202866.
All The Time (feat. Spit Gemz & Shaz Illyork)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1627d18bc96064f90c75be4a3bb4ed9db656ad567b14c66520f31ba47cf3a79. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W11203586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77b42cc484065322c3133fab5dd4e5a60db0cfe99978ce950bb07fbbc4ccd61. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR9W11213571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50463485ee036f048a80ff0248cc76e1731a885c706181f73f103598ec7ff585. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W11401204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82798afda2dad003e6c067342feedb88705b32c9a1588cd7c3794356eab6208. 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/FR9W11401206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d78ca7ef966b0eba4af2b6f9a005bd5845038be7e2ac4a45c1b86a153e75256. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W11401207.
Slumz (feat. Snook Da Crook & Wyld Bunch) [cuts by DJ Djaz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43415de8688e9ad37b22c53f8dcc0364419c8ba0c1e3062c8c4c1706338e5f08. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR6IU1400002.
Governors (feat. Skanks & Milez Grimez) [DJ Brans Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f7a21e416ee895b57252282039042b098e819f0ec3c23e3c378a9c62de6f44. 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/FR6IU1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33102e03ebe6ccef054bc20f404445e36241a781efaeb085349406cc30ee2d8. 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/FR6IU1500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9205dcb936e146d1023cdfd4fc6f23af5d7468ac0c1927b2f9611b480e9413e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6IU1500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400e38198a480251bd3be26b2e156dfd6c3b9d2636be97cc6dd836c2825a926e. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR6IU1500051.