David Vann may refer to: David Vann (mayor) (1928–2000), mayor of Birmingham, Alabama David Vann (Cherokee leader) (1800–1863), treasurer of the Cherokee Nation David Vann (writer) (born 1966), wri
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 0x173bbc9d647695cf4debc3ed1d20826c638d657bd755947b6797cd7558f6ae5e. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d7fa5ab-78f8-42dd-8a1a-2bc158ce1dfe.json and https://artists.proofprofile.net/proofs/artist/1d7fa5ab-78f8-42dd-8a1a-2bc158ce1dfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Im Schatten des Vaters (Ungekürzte Lesung)
Die Unermesslichkeit (Autorisierte Lesefassung)