Vaseem Khan (born 1973) is a British writer, author of the Baby Ganesh Detective Agency novels – a series of crime novels set in India–featuring retired Mumbai police Inspector Ashwin Chopra and his 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 0x1871266f832937e6611c2ecba56ae52284b94ac03190852309da0cb4e10caeba. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55f2d59d-58d0-49a0-93a0-d2d6c3a8fc8d.json and https://artists.proofprofile.net/proofs/artist/55f2d59d-58d0-49a0-93a0-d2d6c3a8fc8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).