Josephine Madonna Davis (June 29, 1912 – May 23, 1961), known professionally as Joan Davis, was an American comedic actress whose career spanned vaudeville, film, radio, and television. Remembered bes
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 0x7a0aec6b906c7a581ce1f803e88b906fe0ff24c20689a03ad1a92c1f911d813d. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6ec8adc-fb7e-4336-8332-8eaaee9ecdee.json and https://artists.proofprofile.net/proofs/artist/a6ec8adc-fb7e-4336-8332-8eaaee9ecdee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).