Markus Gabriel (; born 6 April 1980) is a German philosopher and author at the University of Bonn. In addition to his more specialized work, he has also written popular books about philosophical issue
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 0x365666925ffba6c7ad5fb6dad0f9324d4cf9f2830c1d8d037329ea16a087c32f. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07f013bf-4b65-491b-982b-2a98dece4361.json and https://artists.proofprofile.net/proofs/artist/07f013bf-4b65-491b-982b-2a98dece4361.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Herrschaft der Computer? [phil.COLOGNE live (Ungekürzt)]
Was sind und wer braucht eigentlich: Werte? [phil.COLOGNE live (Ungekürzt)]
Philosophie einer radikalen Mitte [lit.COLOGNE live (Ungekürzt)]