Narada Leelanaga Caldera Disasekara, popularly known as Narada Disasekara (7 June 1933 – 19 May 2010) was a Sri Lankan classical singer. He was the first singer to win the Sarasaviya Award when he was
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 0x89eaa2fce8cf62d81418c5235339cc1290d868a87088510cb22446d2a3e5d9a4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ac023cd-6a7e-46f5-8d15-96a5b9327bdf.json and https://artists.proofprofile.net/proofs/artist/6ac023cd-6a7e-46f5-8d15-96a5b9327bdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).