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 0xc4c309d2cd66a420eac3cd9e06a43f9d6a1d33084a54301bc4b5cb5d070f020e. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e303ee9b-d28d-48bd-83b9-fbeb512f80ee.json and https://artists.proofprofile.net/proofs/artist/e303ee9b-d28d-48bd-83b9-fbeb512f80ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If You Love Me (feat. Havoc(Mobb Deep) , Sheek(Lox), Joell Ortiz and Cassidy) - Single
All We Know (feat. Ace Hood, Ray J, Swizz Beatz, Bow Wow & Fat Joe)
All We Know (Clean Version/ No Curses) [feat. Ace Hood, Bow Wow, Fat Joe, Ray J & Swizz Beatz]
My Generation (feat. Wyclef, Jim Jones, Bounty Killer & Pitbull)
It's All Love (feat. Sheek, Uncle Murda, Raekwon & Nathaniel)
Dark Night Shooters (feat. Styles P, Papoose, Hell Rell & J.R. Writer)
New York Giants 2 (feat. M.O.P. & Chris Rivers)
Addicted 4 Life (feat. Grafh & Bizzy Crook)
The Plaza Hotel (feat. Murda Mook, Ransom, Inspectah Deck & Maffew Ragazino)
If I Shoot You (Remix) !! (feat. Raekwon, Havoc & Consequence)
If You Love Me 3000 (feat. Az, Ransom & Loaded Lux)
Love (feat. Raekwon, Uncle Murda, Sheek & Nathaniel)
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 0x69a486157b50dc3b383633266a60eee831ef395ae5907ff60099097c6b007490. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCACO1602443.
Thicker Than Water (feat. YOUNG CHRIS & DRAG ON)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783b02cf7609e7d5da0846f3672608e6cba5fa2c6bc858349726c32cb021426d. 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/QZWFJ2413965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecba3e8181979330cf6efa25e57b6af5f4871f098c354c05efaacc9e8fe53be. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZZ792428395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcd31d3a4d7381c841c34ae91c4d0864432836978ca2745bb332bd1644311b3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZES72587239.