Roy H. Vogt (1934–1997) was an economist, professor, literary critic and pastor from Steinbach, Manitoba and an important figure in Mennonite literature. Vogt was born in 1934 in Steinbach and pastore
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 0xf297929e49c29189311ca88c0b0285bd72fede53bf44384b9b69ef58e30dbd05. 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/72f31864-55ea-48ff-bcb1-680143b41ce1.json and https://artists.proofprofile.net/proofs/artist/72f31864-55ea-48ff-bcb1-680143b41ce1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).