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 0x7252f3a5ab1a410c6fd7a8d915e39ed42d16813636b4ac3b64bee59b2bdf1bbc. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28984f47-6024-43f0-9c32-539bae70646c.json and https://artists.proofprofile.net/proofs/artist/28984f47-6024-43f0-9c32-539bae70646c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Majhe Majhe Tobo Dekha Pai l মাঝে মাঝে তব দেখা পাই l Rabindra Sangeet l
Rag Komle Phone Koris । রাগ কমলে ফোন করিস । UNPLUGGED
Khodar Kasam Jaan | খোদার কসম জান (Cover)
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ময়ূরকন্ঠী রাতের নীলে | Moyur Kanthi Rater Nile |