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 0x451e36ac9029396df5d27a3bee6d250b4c8ed3e9dd59530da997bad13294b0d7. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/990de30d-fb04-4fa1-93ca-6d669d770a9a.json and https://artists.proofprofile.net/proofs/artist/990de30d-fb04-4fa1-93ca-6d669d770a9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Running Man Challenge (At Night) [feat. B.o.B] - Single
You're A Star (feat. Busta Rhymes & Shonie) - MH 2019 Remix
You're A Star (feat. Busta Rhymes & Shonie) [MH 2019 Remix]
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 0xb5baec49ca2b8c799c5a6abff6d127572a1edfc3ff558962a937e07dccf9f532. 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/DK4YA1918401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b939cda9e8c90ce216a8e65a807a04870b2a14b30eb73820eee24baad5f6e2e. 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/QZCCY1800212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587dd76649d0ac05fdd90f5bccfc15b3dd43d53e3e71998a7ceb29e70b93f83a. 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/USNPD1000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f9dc09d1670273ec44aa25a0216c4e10291ad020977b1a169aa34c005db0c3. 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/USDAA0700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e18070006a8d3add77fd2481f2333399c645c89c1278b7d542d8a83e52e30f7. 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/USUYG1131476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba93f54e89b0d70bc21d41153a4ea3647a8d24ecb057eecce460f01f8ab10941. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GB7QU1400012.
DJ Khaled & E-class Present From The 305
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bd8ee64b2d392cfa613500ac1bcb6e5dc6b3250e78a8f6e1c2d4082aac9d07. 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/USKO10902024.