Melvin Richard "Dakin" Matthews (born November 7, 1940) is an American actor, playwright, theatre director, and theatrical scholar. He is best known as Herb Kelcher in My Two Dads (1987–1989), Hanlin
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 0x5f3c2fbd594a5b3e0466ade54f54480a6c4b70c40ecd5629ee52b02c96a39570. 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/978789fa-eb2b-4147-b173-503b9b94e657.json and https://artists.proofprofile.net/proofs/artist/978789fa-eb2b-4147-b173-503b9b94e657.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.