Soumyajit Ghosh (; born 10 May 1993) is an Indian table tennis player from Siliguri, West Bengal.http://www.tabletennisbug.com/2010/10/table-tennis-player-profile-soumyajit.html Table Tennis player pr
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 0x348604bb983adac8ffb555453ea6a28095e24da3fc5525658007c1aa9ec0d533. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5e79d25-3cb3-4d38-83fe-b0be0cae378c.json and https://artists.proofprofile.net/proofs/artist/e5e79d25-3cb3-4d38-83fe-b0be0cae378c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).