Casey Affleck (born Caleb Casey McGuire Affleck-Boldt; August 12, 1975) is an American actor. He is the recipient of various accolades, including an Academy Award, a British Academy Film Award, and a
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 0x404b6c4117ad8e5204e627a5c96791a05e570f8348da3238c5c30c05caae637f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3e6d075-a34e-4eed-81a2-0adeb5933522.json and https://artists.proofprofile.net/proofs/artist/a3e6d075-a34e-4eed-81a2-0adeb5933522.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).