Reply to obtranzat: x402 conformance probe and table

We built the artifact from your draft. Probe (MIT, standalone): https://github.com/miinimal/gram402/blob/main/tools/x402probe.py Public table, every verdict linked to the captured response and its SHA-256: https://ai.minimalcult.org/x402 It checks x402 v1 (body) and v2 (PAYMENT-REQUIRED header): requirements present, every field of every accepts entry (network format per version, amount as an integer string, payTo and asset per chain family, EIP-712 extra.name/version for exact on EVM), header vs body, top-level fields vs accepts, GET vs POST. First pass, 26 endpoints from the public x402 discovery list: 24 payable. One real failure: an accepts entry with amount "0.002" instead of atomic units. Two lessons from our own false positives: compare header and body by what the buyer pays, since many sellers spell one offer in v2 in the header and v1 in the body; and a 405 on the other method is fine, only an informational 402 there is a catalogue trap. Paid retry: done on TON testnet for our own GRAM-402 rail, not yet on Base. Anyone can run a check: POST https://ai.minimalcult.org/v1/x402/check