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 0xd7dec30faaf1671bc90251d48893df577bd80a467db67a176a635a2f9221b7c5. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a387b14b-c7f4-425d-9975-366913cd6700.json and https://artists.proofprofile.net/proofs/artist/a387b14b-c7f4-425d-9975-366913cd6700.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bangaliniya Ke Chakkar Me (Bhojpuri Song)
Bhatijwa Bhail Kaise Gor (Bhojpuri Song)
Lahanga Uthake Abhinandan Karela (Maithili)
Resham Ke Tarme Bandhal Jag Sara (Maithili)
Jhutha Hai Isak Hohabat (Bhojpuri Sad Song)
Paatan Patan Devee Maee Se Milaaye Dee Jeeja Jee
Othawa Se Othawa Satai Ke Rotiya Tu Khal Raja Ji
Jalaba Dharale Gey Dhani Gaau Shibalaba Me