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 0xdaab59714911b9ddf38c8d0be35d84ffe028dfc21fc057cefaf826f9a6ce31d1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/860c4bf6-23d7-4b94-be30-2f170e84c35f.json and https://artists.proofprofile.net/proofs/artist/860c4bf6-23d7-4b94-be30-2f170e84c35f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nirbhaya Atyacari Ko Saja Do (Bhojpuri Song)
Saiya Gulari Ke Phul Achar Khojele (Bhojpuri Song)
Ratiya Me Kholela Muh Dhopani (Bhojpuri Song)
Holiya Choliya Devara Far Diya Ho (Holi Song)
Chori Chhupe Kahe Bulabelu Chudiharwa Ke (Bhojpuri Song)
Pis Da Haradiya Uthata Dardiya (Bhojpuri Song)
Marad Mor Agutail Rahata (Bhojpuri Song)
Padelu Ucha Khal Ta Karelu Ahu Ahu (Bhojpuri Song)
Saiyan Tharesar Me Norcha Dharawata (Bhojpuri Song)
Piya Khajuaata Kamriya Ke Niche (Bhojpuri Song)
Satala Arthing Ke Taar Rajaui (Bhojpuri Song)
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 0x813a9ec24025cd63c9446461ccd054ac222f28a2faadf21cc67bf0fbf4fc73de. 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/QM7282440675.