Kathy, Kathie, Cathy or Cathie Smith may refer to: Cathy Smith (1947–2020), Canadian convicted of involuntary manslaughter in the death of John Belushi Cathy Smith (cricketer) (born 1961), Australian
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 0xaf6b5e009cbf033633818f9bd931995ad2de502164c6bac5eeef63365fb022f8. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1738381e-742d-4f26-ab91-1a7ce6281d10.json and https://artists.proofprofile.net/proofs/artist/1738381e-742d-4f26-ab91-1a7ce6281d10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Some Songs I've Saved (Digitally Remastered)