Dulal Manki is an Indian Assamese folk artist and musician. He is one of the traditional folk music artists from Tea-garden community of Assam. In 2021, the Government of India awarded him the Padma S
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 0x42fd5c73e77cda30e7d7a769bcd3cbe10e67ccdfa569c86ff806aa0420894e22. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/387bed04-ce5c-4509-a669-5d6d2ca64520.json and https://artists.proofprofile.net/proofs/artist/387bed04-ce5c-4509-a669-5d6d2ca64520.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.