Friedrich Wilhelm Heinrich Alexander von Humboldt (14 September 1769 – 6 May 1859) was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science.Malcolm Nic
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 0xf75ae85b95a0cae512813d108db87a0549127f638bb556d2f31b23c033300c2d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ac8d5c9-d71a-4ff0-8ce0-15f26d4145ff.json and https://artists.proofprofile.net/proofs/artist/8ac8d5c9-d71a-4ff0-8ce0-15f26d4145ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fahrt auf dem Orinoko (Reisebericht gelesen von Johannes Steck)
Das Buch der Begegnungen (ungekürzt) [Menschen – Kulturen – Geschichten aus den Amerikanischen Reisetagebüchern]