Chris Butler may refer to: Chris Butler (actor), portrayed the Cousin in Torchwood and Matan Brody in The Good Wife Chris Butler (cyclist) (born 1988), American cyclist, in the 2011 BMC Racing Team
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 0x061427e48b0a0546d7fcfebb5c02fc2fe106554f7e932511b68b379fb5856dcd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bf50254-f7d7-4913-9623-e1c984d56bfc.json and https://artists.proofprofile.net/proofs/artist/5bf50254-f7d7-4913-9623-e1c984d56bfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).