Mike Walsh may refer to: Mike Walsh (TV host) (born 1938), host of the Australian television program The Mike Walsh Show Mike Walsh (UP), executive for Union Pacific Railroad named Railroader of the
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 0xc39b1a47f2fe59e0e226d3c4b347b20b79902ba6638e0c1f1c6a372e95a55019. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20db88a3-ab4a-4329-9032-f08cc70bd46b.json and https://artists.proofprofile.net/proofs/artist/20db88a3-ab4a-4329-9032-f08cc70bd46b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).