Mary Kathleen Turner (born June 19, 1954) is an American actress. Known for her deep, husky voice, she is the recipient of two Golden Globes, as well as nominations for an Academy Award, a Grammy, and
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 0xc4335bf1256e2d05fc789781333893d7009e9396100e27089ff82ff735bf50bb. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c07ab40-3e5d-468c-95a1-d35f091eeebd.json and https://artists.proofprofile.net/proofs/artist/9c07ab40-3e5d-468c-95a1-d35f091eeebd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).