Anthropic's Mythos model can autonomously find zero-day

vulnerabilities. Their CVD disclosure process uses manual

SHA-3-512 hash commitments to prove findings existed.

I built something that automates that in one line of Python.

What AetherProof does

One function call generates a 128-byte Ed25519-signed receipt

that proves:

What model ran — FNV-1a hash of provider/model ID

What it produced — hash of the output

When — cryptographic nanosecond timestamp

Tamper-evident — flip any byte anywhere → INVALID

python import aetherproof

receipt = aetherproof.for_anthropic( "Find vulnerabilities in this binary.", finding_text, model="claude-mythos-preview" )

receipt.save("CVE-2026-001.receipt") print(receipt.verify()) # True Try it in 30 seconds

pip install aetherproof python -c " import aetherproof r = aetherproof.for_anthropic('question', 'answer') print(r.verify()) # True print(r.pretty()) " The unusual part — invisible Unicode watermarking Receipts embed invisibly into any text using Unicode Private…