Ramnad V. Raghavan (19 June 1927 – 21 November 2009) was a player of the mridangam. He was born in Madurai, Tamil Nadu, India, to P. Vaidyanatha Ayyar of Kooniyur, Tirunelveli district, and Brhannayak
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e07404acb946dff2464d3d7db31fef245f0ec079e09eb67e0c3de86bb4bae5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd33513e-658d-4511-a9fc-4acdd30e579f.json and https://artists.proofprofile.net/proofs/artist/dd33513e-658d-4511-a9fc-4acdd30e579f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).