Sara Schaefer (born July 10, 1978) is an American stand-up comedian, writer, and author. Personal life Schaefer was raised in Midlothian, Virginia, the daughter of Billie and William "Bill" Schaefer.
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 0xcee33cbc6673b6e1a89a5e8ca3af793ebf91dfe0c7a2beb3b8800bc627cacab9. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f14e4794-c01f-4a43-b4f1-ababdd765719.json and https://artists.proofprofile.net/proofs/artist/f14e4794-c01f-4a43-b4f1-ababdd765719.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).