Jesse Aloysius Mann (May 18, 1922 – April 10, 2016), a native of Washington, D.C., was an American educator of philosophy. Education Mann graduated from Gonzaga College High School in Washington, D.C
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 0xa3abf7aa2976213f972ceace42d8a0850a61931f24c6f8f6278a5fc1c63c4aae. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c83b4db-75fc-4747-88f3-15642459ba4f.json and https://artists.proofprofile.net/proofs/artist/7c83b4db-75fc-4747-88f3-15642459ba4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).