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 0x80522dd9c3b8344e28c86c4583fee7c0124f3d1920eb49503f8074b289eb06b5. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6320a85-96f5-4322-a5ad-11ef115b0ac7.json and https://artists.proofprofile.net/proofs/artist/e6320a85-96f5-4322-a5ad-11ef115b0ac7.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 0x6b8bfbc15df3e95338d1e132c69fc39a903b6781765f8e7240d10018b360ece8. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USLD91751879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c2e2e25df8ae4ffbc3b232c3cd5fae2403d79b87941e8f23c92d85b224d8b7. 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/USLD91751880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5924f840d9293cb6052747fede39588820228872c34a89395b84e5c33d233c8. 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/USLD91751333.
We Gotta Do Betta (feat. Big Yount, J’Rell & Big Unky
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8276f96e54aa3630baf2607837ea233597974f9f0f5c686ad1e889bd10e3aac3. 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/USLD91744934.
Puppet Masters (feat. Thanos Beats & Mooch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce584f899335f891eddb4db4436bfa72c1d0cf70d43c503e3b419851088ab8e8. 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/USLD91743071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf42d1698f64b94fbce29277d99fa3c0294ab1b0bcbbd40903a32ef425b73bcd. 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/USLD91742357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9191dadef9c13afbd800794ba47b204e164dae044f41e68b15f23c512b9ad1ab. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USLD91740384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8bfbc15df3e95338d1e132c69fc39a903b6781765f8e7240d10018b360ece8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USLD91751879.
The Plug (Remix) [feat. Shame Gang, Matt Fingaz & Rockwilder]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaccf19137c61f0875e5429c753cbf93d2ed46367dfd75c4bfb21e08e8074dd. 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/USLD91750763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b365746f65c2e42405b3ad68b72ecaa08df3e458aeeee9029ec36f845f2d5d3. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USLD91750764.
I’m Good (feat. Thavid Ruffin & Big Yount)
We Gotta Do Betta (feat. Big Yount, J’Rell & Big Unky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8276f96e54aa3630baf2607837ea233597974f9f0f5c686ad1e889bd10e3aac3. 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/USLD91744934.
Hustlers Anthem (feat. Big Yount & J.Rell)
The Plug (feat. Matt Fingaz) [Instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf42d1698f64b94fbce29277d99fa3c0294ab1b0bcbbd40903a32ef425b73bcd. 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/USLD91742357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ec5e2c89d4b7013d5d91c0166c07bf7962e9bc45f90d881404f4b36524c4bf. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USLD91742325.
Puppet Masters (feat. Thanos Beats, Mooch & Rigz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42287c875242d011aaafe50e75b4c0b5390cf7ff438d29807d99f9bec9e8022c. 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/USLD91739156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e109605180dc2bade8cf7e44672f7d172a727a958578eb5c16842c16ad5d7d3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USLD91753994.