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 0xb4490bd8a595279962b915af6b6c4a1c914e26e92ff4e071f8d930279a73cbc5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7908531a-90f3-401c-830b-74d3508bfb39.json and https://artists.proofprofile.net/proofs/artist/7908531a-90f3-401c-830b-74d3508bfb39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ballia Ke Mela Ghuma Da Rajau (Bhojpuri)
Tohare Namwa Kat Ke Baledawa Se Karejawa Me Re Jaan (Bhojpuri)
Thakuran Ke Dilwa Dukhailu Ho (Holi Song)
Liyadi Tikuliya Ballia Bajar Se (Bhojpuri)
Duniya Chale Na Shri Ram Ke Bina (Bhojpuri Song)
Pepsi Ya Coca Cola Humke Pila Di Na (Bhojpuri Song)
Thok Dela Kila Hamar Ballia Jija (Bhojpuri)
Lasha Jaisan Chapkal Bhatar Rahata (Bhojpuri)
Kare Dhan Ke Ropaniya Chal Ye Suganiya (Bhojpuri)
Duniya Chale Na Mahakal Ke Bina (Bhojpuri)
Holi Me Bhatar Aawatare (feat.Queen Tanya)
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 0x9d2b04f6b282d8e461c26fdb7407f294d5625845599a9b06a7d89f92180c17cc. 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/ING642419206.