Richard Wayne Dirksen (February 8, 1921 - July 26, 2003) was an American musician and composer, who served as organist and choirmaster of the Washington National Cathedral in Washington, D.C., from 19
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 0x3a1fa57fb8d772b93d6a070989f11d6d340d9dc1e612d0685a4cce6fc63f12aa. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ac7cb38-77a9-414e-9a29-3f6cf6644479.json and https://artists.proofprofile.net/proofs/artist/0ac7cb38-77a9-414e-9a29-3f6cf6644479.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.