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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5776959a7989120885c72ba72077328ae2c86beebd429de4026b4b00a443ecd8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95da7c9d-ff64-404f-af77-c2cf2f49eea1.json and https://artists.proofprofile.net/proofs/artist/95da7c9d-ff64-404f-af77-c2cf2f49eea1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8f1e29f3df1d22254a4511984f4a61b4369c2ba11abc0791351200f781147c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USY280746101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ede954b0a2b197945b8d1c4b85703f32a4936b261a2fbb46733e91687b04ea5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USX9P0978793.
Murda Klan (feat. Twisted Insane, Koopsta Knicca & Lord Infamous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bf71e01ef1ca0f780118bbaafba899acbf1f87e084134ab16a8dd413cfefa2. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:02:23Z), 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/USCGJ1231047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e5e4bd0cb9726bb81f789b122fe16381ce0cc5b5fcdb2aba14f405cc49d257. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USCGH1520166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd2bf1022e07aad5f528a9bb3feee8ef435146b031881962184bcd0d456e4f8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH1520172.
Billy Graham Style (feat. Renizance, Scotty Boy, Dat Boi T & Lucky Luciano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf6b93755ccf3c7800b8062935feb2f090b937e6b3c492d9fca2b1a00f5e95b. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:20:09Z), 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/USCGH1784764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02852d8aff180e2497f5aa0e9817c7d6559996110e182ba7ba19d85c10f28be4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDY41757812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e6e19f23c25da631e64be7bd32085f47e70f6cef66c0f209778d993ead2187. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USDY41757819.