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 0xeb92307baf5d661daf94af51396f72f963e0affdd5c532745382b738511109ec. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0f6eba7-01e7-4b8b-886c-83fbd784a7f7.json and https://artists.proofprofile.net/proofs/artist/b0f6eba7-01e7-4b8b-886c-83fbd784a7f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Instrumentals Vol. 3 - Hip Hop Boom Bap Lofi
Mental Control- a Lofi Hip Hop Experiencie
Mental Control - a Lofi Hip Hop Experiencie
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 0xb4b690533f4df0f01e30b5edd8f82f51543f1dffbc29c7c771de81ccd6468f0c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:04:56Z), 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/QM6MZ1911276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc580858506818089af908366292aca78585ccf20020c11de83987df9a0c34e30. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES64E2500505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420d5db028a904702ab7e4a79d7d49e1694311590f9fa6163b7b147c056e662f. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ES64E2509291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a1ebfdc190fa9121166762e1e80ece653b725d2c8e1da67e160dc5dfe03c82. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:47:26Z), 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/ES64E2510550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ace8c518b3d87b5b35cc3c325fac8cff6cedc4599dbd627aaf360820eeaf54. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES31E2302015.