Elizabeth Hart may refer to: Beth Hart (born 1972), American singer Betsy Hart (born c. 1963), American columnist Betty Harte (1882–1965), American actress Eliza Hart Spalding (1807–1851), American Pr
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 0xb2f695d4e58df4247b1730fd7b3e7c32c00f014f00e3062a8149b2a3d9e67114. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76deb899-3f0a-43ef-9d13-d63584f91dec.json and https://artists.proofprofile.net/proofs/artist/76deb899-3f0a-43ef-9d13-d63584f91dec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).