Annie Smith may refer to: Annie Smith (athlete) (born 1939), American long jumper Annie R. Smith (1828–1855), Seventh-day Adventist hymn writer Annie Morrill Smith (1856–1946), American botanist An
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 0x43a28948e865136a6a5dcf11247f78ff8254b0262de648b82ce2859d62609363. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e33272f-a70e-459e-b79f-8ba917e08fcb.json and https://artists.proofprofile.net/proofs/artist/4e33272f-a70e-459e-b79f-8ba917e08fcb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).