Chris Lewis may refer to: Chris Lewis (tennis) (born 1957), New Zealand retired professional tennis player Chris Lewis (footballer) (born 1969), Aboriginal Australian rules footballer with the West C
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 0x92e2780ce1f5aa6efba543b32c1dba535512220cf9d52b38ab38dddce0374f1f. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14def26f-e0fd-42c4-a5df-0d96f6e4dcda.json and https://artists.proofprofile.net/proofs/artist/14def26f-e0fd-42c4-a5df-0d96f6e4dcda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Leadership Lab (Understanding Leadership in the 21st Century)