Certificate Transparency (2013)
Google began requiring Certificate Transparency for new HTTPS certificates. Every certificate had to be logged in public append-only ledgers where anyone could audit entries and detect fraudulent issuance.
Fraudulent and misissued certificates became detectable and publicly auditable; browsers began refusing unlogged certificates.
The model, independent verifiers checking append-only logs without trusting the issuer, became a template for building auditable infrastructure.
STP applies the same pattern to AI agent actions: an append-only transparency log plus an independent witness, so customers verify without trusting Traefik's signature alone.
