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 0x8245444922615ecac1c6e19b2dc4a575578db77dc881e0fb928f8b464c619a69. 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/4ed46a38-cf78-452e-89b6-a969bdeb4d86.json and https://artists.proofprofile.net/proofs/artist/4ed46a38-cf78-452e-89b6-a969bdeb4d86.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 0x16c0bc2c6bb853d16c333e242f73656b00a8884b5c88ee46576ca17e411d4445. 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/USUM72318021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cd30e7990ba2e88dafea4cab14b002bcccbab779fa1c048969e4584b855e53. 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/USUYG1404607.
RAP SH!T: The Mixtape (From the Max Original Series, S2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c680169f36a46f839784dcc1cac7a3e05fd6728ec2afa5c643bb2a510a57307. 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/USUG12308424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7507656a9d41372245b0e029025f9b94ae362241ba0be964096ec7e37111ab38. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7811114638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ea65802bee94f50e4f983c4bd6b4414d5a7cd91e91f754dc83809b16912363. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CH7811114654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb34c2ddd5fd399b8c0decf90b223c7547cddd91e66e98616b426bf48a43366. 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/USUM72414143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794d1ae441af64ff89a89948a9b327a8bcd32c2224ffe1e8ae7246dbe34619f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM72414307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1cfb77e86ba961782df3a08a7a6b2dd253fe5f937839f059aa71fc9a4758c7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUM72306294.
Jodeci (Remix) [feat. Vontee the Singer & Cash Cobain]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a3d3618bdb0fbae7023e661dbcc0b94cb0e32c89afbb57c89a8d003c1713c9. 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/USUM72413962.
Let Me See Something (feat. DUSTY LOCANE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e43dc4d641bd19c355559c247be1002722a85357eade74011300d331648141. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM72409700.
Let Me See Something (Extended) [feat. DUSTY LOCANE, Big Yellow, Vae Vanilla & Lil Kayla]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8ab7589247fd48afbee95fdbfa7b3fbeda08a24c5931e56d1ba8e5afd94120. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM72414316.