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 0x26e925f6937736c57a63ff7a7122c296fef4342243b826e9ed7d1bd8dfc8c3f9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b21425ca-4cc1-40bc-aeaa-0ee0d87ccbbb.json and https://artists.proofprofile.net/proofs/artist/b21425ca-4cc1-40bc-aeaa-0ee0d87ccbbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rangava Dhire Dhire Dali Hamar Jija Ji Ke Bhai (Bhojpuri)
Holi Mein Devara Choli Kholi Ke Rangela (Bhojpuri)
Lela Mobile Number 94 400 Chakar 95 500 Patar
Chilam Ke Phuk Ja Ganga Ji Mein Dhuk Ja (Bhojpuri)
Bhir Lagela Devgharwa Mein Tani Thik Jaih Ye Saiya (Bhojpuri)
Muzaffarpur Ke Gayak Sar Have San (Bhojpuri)
Jila Champaran Tohar Jija Lagihe (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 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 0xde1455f706417e679c4e2d85446375b38ecef6c2191c52d698cc0fdbbe9dc0f2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/INS7A2213687.
Baba Vishwakarma Ke Mahima Mahan (Bhojpuri)
Maliniya Mai Ke Chandan Karele (Bhojpuri)
Jila Motihari Hai Dabango Ka Sahar (Bhojpuri)
Ugi Ugi Suruj Dev Bhor Ho Gaila (Bhojpuri)
Sdm Jayoti Maurya Bhailu Chhinar (Bolbam Geet)
Yadav Ji Se Marvaibe Amar Ho Jaibe (Bhojpuri)