Bruce MacLeish Dern (born June 4, 1936) is an American actor. He has received several accolades, including the Cannes Film Festival Award for Best Actor for Nebraska (2013) and the Silver Bear for Bes
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 0xd49531c49ca3bfac967567f839db5a9682f7137b12a8b043964d3483824a8ba6. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5130717-3562-4bb7-ad5c-3edb5f7f7696.json and https://artists.proofprofile.net/proofs/artist/a5130717-3562-4bb7-ad5c-3edb5f7f7696.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).