Sarah Cary Becker (February 14, 1813 – November 27, 1901), also known as Sarah Becker, was an American linguist of Spanish. Personal life Sarah Cary Tuckerman was born in 1813 in Chelsea, Massachuset
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 0xaf93c0c16ccad10e8b113c137ac1aca8c048f48c419009aad49770c38fc08c3e. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a56d7f68-085b-4103-8c8d-b027667ba297.json and https://artists.proofprofile.net/proofs/artist/a56d7f68-085b-4103-8c8d-b027667ba297.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).