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 0x81bae1e86d40fb54915430157413db5bfd1f5405b276e51a80af63f747ce198c. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04cbb9e4-276f-49e5-81c0-b31dd4fa53cd.json and https://artists.proofprofile.net/proofs/artist/04cbb9e4-276f-49e5-81c0-b31dd4fa53cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kaise Hoi Kataniya Mati Maralas Bangaliniya
Hum Waha Khade Hote Hai Jaha Matter Bade Hote Hai
Nacha Tare Pandi Ji Ke Bass Pa (Bhojpuri)
Darshan Kara Di Devi Maiya Ke (Bhojpuri Devigeet)
Sagaro Chalela Chalana Panditan Raja Ke (Bhojpuri)
Sharde Maiya (Bhojpuri Saraswati Vandna)
Bathe Kamariya Fagun Mein (Bhojpuri Holi Song)
Baat Maan Panditan Ke Na Ta Le Jaaib Bandh Ke
Panditan Babuaan Ke Yaari Padi Sabka Pe Bhari
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 0x0aedaf3dd686053f852984fa60159d591fd5e539091d14ffda6f2de7ec64ed12. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/INS7A2570016.