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 0x9d2d7084443335a35b1d562fa5384efdd4839f97a142bc06f6509f4b2eef100d. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40c176c1-8162-46d0-a740-de0d8fd372a7.json and https://artists.proofprofile.net/proofs/artist/40c176c1-8162-46d0-a740-de0d8fd372a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
C.R.E.A.M. (feat. Fed-X, Rydah J. Klyde & Husalah)
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 0xfda95dd1078d68650b6e98533660f6c5ab9795879f5a7ad1e745c4fd4e3c2c41. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:22:38Z), 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/USUYG1174692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3c4310e8b8dcee95cf8e511db85f9c1fccc4482f43f5d74bcf6bf9a8a56f9b. 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/USUYG1174684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e0bb1ac877e5d51380ba81a4892d69951d8c87fe2ea20a992848ed784e21da. 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/USUYG1274005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b89df5039470bc96f5d6bf2dcbea578ed39b3f61429007a9082aa940c07a6b. 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/USUYG1274012.
Political Pardon: Street Legend (Season 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f614371ace1b66467e100974cce7fdd3469dec49fd14ead2ca4ec3d6fa8a2b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUYG1415717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9126888b4ac1834b9cfa5da20e250a89648e15518dc8606da18be1152feef5f. 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/USUYG1082604.
Yo Love (feat. Mozzy & Street Knowledge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e14751b05b119f41543286673516d5d5fa54f35b18824ef104d58ecbee414b. 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/USBAE1314961.