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 0xbefbe331f4e7499f2508e00cdf7337cd947ee5e0ae7d9198a8b82653f2dfc164. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef455c22-fbdf-4946-8b26-da8074fa1a14.json and https://artists.proofprofile.net/proofs/artist/ef455c22-fbdf-4946-8b26-da8074fa1a14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bihar Ke Saan Pappu Yadav (Bhojpuri Song)
Corona Ke Karan Lagal Lockdown (Bhojpuri Song)
Saiyaa Fas Gaini Ja Ke Banglaniya se (Bhojpuri Song)
Doliya Kaharwa 2 Saurav Yadav (Bhojpuri)
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 0x205f8b714c39b6a1e3813fcef531b93d8c28e14538e5176ed7af6fe0d7c75332. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/INN242434296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73be5382ad64ea9c5308f0f29f342f508dcb880b4fbff249f4e461bc4c311f5f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:30:41Z), 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/INN242506866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9525ca56f652d012856edc180e7acb11d1323ac56db71c180cb310bf8a2b1b7f. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:52:29Z), 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/FRX282539533.