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 0x6e37d1ce84e1b61021e8e221fd9661253e350d00b0a27c5f715fd3140e84db8c. 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/4023a61e-a087-4c9d-83be-d1e39f61b2d9.json and https://artists.proofprofile.net/proofs/artist/4023a61e-a087-4c9d-83be-d1e39f61b2d9.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 0x65d712eff17cd456e07a7b0b8f80e7b66549a82ea5e1bf8ca37b46061b9fcbba. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBCPZ0701917.
Chicago Life, Part. 2 EP (feat. Scott Payne, Melvin Meeks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e665a6826ed8b249d7a8cf950fe85573dfbe25179f917a343111dd0c348b990. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CAGOO1994420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe420a77e06cc704c86aa8a8f5e167a962628bd702f69604c6b6f78f8464e09d2. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/UKU932480899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943a2a27844c2fdadd694288df2cfc52911d4d90664d88c51f8e4ea2b737edd5. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/UKU932480900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3f56fbd3dbd3b2424bd6881af85018264ca01c58d336f22605c646f5bf62c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU2449764.
Everybody Move Ft. Ron Carroll (Stacy Kidd's House 4 Life Chicago Mix)
Everybody Move (Stacy Kidds House 4 Life Chicago Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f969add21643d406c90cc317741ab1e02831d5317400449ac310335349db5ab. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CACWV2519084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6688f1e520bd8d5df5b9e6ea07426c09608e4c456374370a0ab28ea9104f4e. 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/CAENV2509216.