Caroline Levine (born December 12, 1970) is an American literary critic. She is the David and Kathleen Ryan Professor of Humanities at Cornell University. Her published works are in the fields of Vict
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 0x13d6173863d06a8bc95a0c75da30d12a2d8c2fabac1e84fb11aa58cb56d1b903. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e99d38b-10f1-464f-a756-abfd4e281397.json and https://artists.proofprofile.net/proofs/artist/2e99d38b-10f1-464f-a756-abfd4e281397.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.