Ryan Walker may refer to: Ryan Walker (cartoonist) (1870–1932), American socialist cartoonist for the Appeal to Reason and other publications Ryan Walker (rugby league) (born 1986), rugby league fo
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 0x250ed54a1f47806611de58135defcbf09ad3a4b0f463fbdf37b78d0e85aac460. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aca9faab-0571-4447-b432-8ff0a8f07632.json and https://artists.proofprofile.net/proofs/artist/aca9faab-0571-4447-b432-8ff0a8f07632.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).