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 0xa5fdf1a9f165407fab3db77f6dbd12dec172b3b7d2b06dcaaa961961ee3791c0. 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/535d6105-a1eb-4afb-ac9e-32f5b9180c5d.json and https://artists.proofprofile.net/proofs/artist/535d6105-a1eb-4afb-ac9e-32f5b9180c5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kawan Maiya Sawar Bari (Maa Durga Bhajan)
Sajan Holiye Me Aak Karu Ne Samadhan (Maithili Song)
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Kajara Ke Melwa Rani Ghumay Debo Ge (Remix)