Anwesha Sarkar is an Indian food scientist who is a professor of colloids and surfaces at the University of Leeds. Her research considers the mechanisms that underpin biolubrication in soft biological
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 0xba18c37857c7c027bff2fc2747b89be1c15d1b9858489ce2a8472099bd297079. Chain 2 (Bitcoin): anchored in block 953844 (2026-06-15T22:28:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00c91d0e-22e5-4822-a6f1-7486878896f4.json and https://artists.proofprofile.net/proofs/artist/00c91d0e-22e5-4822-a6f1-7486878896f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).