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 0xeb35dfc8a56f0c91c892cfa1ad4e1202f7b83f3650e783c4fe53634b4ec4c401. 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/c3d13e9d-ef67-4606-8214-53b23cbf3d70.json and https://artists.proofprofile.net/proofs/artist/c3d13e9d-ef67-4606-8214-53b23cbf3d70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hate Me Now (feat. Yung Maja, La Duce & Es Gudda)
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 0xcd8d36c4f7718273629f8b2307eb08dbd401edf70ab6a54d409253fe153e35db. 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/USUYG1210775.
Pippy Long Stockin (feat. Drakeo the Ruler, Ketchy the Great & Ralfy the Plug)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88400d78c852cb2e1d6269a41f65330c597dcacc52734e44a0f092380d02d001. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USUYG1210776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf506348923cb4bde4bcc93aa3a5fc671d36f08d4b8efeb0227dfa96f58ae1138. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USUYG1210777.
Troopin (feat. Earl Swavey, Sad Boy Loko, Tyson Crookedmind & Lil Mel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00af1ab4d0f89dd0bfd5457a75f4b2843db167735723dd67d4cc2e785d1c91e. 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/USUYG1210780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25f65f9250e0bb93b7fb68821faa6f3fa40f212017859d8e488fbff53b91cca. 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/USUYG1210798.
Damn Daddy (feat. Drakeo the Ruler & Ohgeesy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9da430183bbe35712c2222e2a74c8b09dad6e165cd24ef969061233820d426a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USUYG1210783.
Cyber Bullies (feat. Drakeo the Ruler, All Black & Bino Rideaux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aa404942d4601de54a6afca40b38e0723125adb4c87618b739cf1a7c2e2a8d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1210790.
Cut Dat Out (feat. Ralfy the Plug & Rizzoo Rizzoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a2d385827ad53783939db29eec059e476e4044b1b6ef466c39d2895209de8e. 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/USUYG1210797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab99182ee0d313dd5468918d0bf565182fed343d91fe7e7ec5ae0e8502ca97df. 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/QZ85M1979856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe120286c5f6b4ea0b6b0409140243b2760f7405229b3ec174f975dfdf430dbf0. 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/QZPLR2201755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d04f2359dfe5d6b2f54c93739201e41b95148244ace0391a640f1bfffff94fb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZPLR2201756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c029740470219c76c40430cd5a5571e9c878331be44d0361b5befe49accb834. 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/QZPLR2201757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2424dbffd94fa9f2334c9cad3c475d896fbf9ef735c5a43b33c10f029f03e1be. 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/QZPLR2201760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd65d8ee58f9ee82b324fcde3ef6b9fc9e8cea897d550eea3bb3210fc8c7c85. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZPLR2201761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a85597e84758939cca2b9a8ffd6970d31159c2d5e09c8424f15491522e68a03. 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/QZPLR2201762.
Dustrumentals Vol.1 "Sumthin to Ride Too"