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 0xf55e47fce309c637d505be35b986d022ce9fcf273768c90761b14c7696f4604c. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2798ad77-a615-4f58-a42b-034572741a52.json and https://artists.proofprofile.net/proofs/artist/2798ad77-a615-4f58-a42b-034572741a52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dago (feat. Perry B, Gangsta Dre & Eddie Mmack)
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 0x95cbd89b8a0445834a3720c04e828827791e22f971c56dc1c352f9b9a7dc7590. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USUYG1526244.
No Place Like Home (feat. Mizz Bell & Bossman Hog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dfb26c0f67fb24e6e244cce70407621606995033dd8979e04e65d1efe94b70. 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/USUYG1526957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7c1ab423f03a37aacadbda10b94888101d9eb04ee2b845adff39cf53b57680. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USUYG1526248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d18d16366f19fc900c472d5c6e5f7768945ed0d16f132feb9d8e248c705fbe5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USUYG1526949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9486fc637e0fd9c481600cef344de259d1c65017ec596c808bb380b95bfeff. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USUYG1526950.
Set (feat. Googie Monsta, Tiny Doo, Lil Cs, Damu & Jayo Felony)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944fe3be1133767984add6cdf29803b0a59889a6eab2616489166f66b1e92191. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USUYG1526944.
Footprints (Red and Blue Mix) (feat. Dosia, Le Crae & Dontae Hog Mob)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c031707363271e1050a29e554de6dec3f2a3af922e098156c9feeaa98ebece. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USUYG1526951.
Through The Eyes Of A General (feat. Looselyric)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc47e9951bb920f1affd0a536c1e2d6d2113c7000a1f3c5ed357175a7cd9f2fc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USUYG1526254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87782c0cd8c569e66b621646ee4ee0bf354a187476cd26d5db6963466a470d7c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USUYG1526243.