Verification

Version, provenance, and encrypted communication.

Provenance

Important published writings on this site are maintained with digital signature and blockchain timestamp records where available. These records are used for provenance and version verification.

Every maintained article identifies its version, original publication date, and latest update date. The maintained version sequence begins with the theory-wide revision dated 4 September 2026. The website displays the current body text only; earlier body text is not kept alongside it.

Public key

GPG public key: available on keys.openpgp.org by searching [email protected].

Fingerprint: 1D12 1500 1619 01E0 AE5B 616E AE7C 48DD 2506 88E7

Please verify the fingerprint before using this key for encrypted communication.

Author: Geoffrey Chen（陈朝辉） · geoffreychen.com · sustenesis.com