RX7 StateProbe — Website Change Forensics
Find technical website changes that happened before the agent arrived and verify the site now. One call combines preserved history with a fresh live scan and timestamped before-to-now evidence for DNS/nameservers, MX/SPF, redirects, security headers and technology stack. No buyer-supplied previous snapshot required. $0.04 USDC on Base.
Endpoint
https://rx7-x402.vercel.app/api/site-evolution?url=https%3A%2F%2Fblackhawkjapan.com
Free sample
https://rx7-x402.vercel.app/x402-sample-outputs/website-change-forensics.json
Verification
Sustained protocol conformance over many checks from our infrastructure. Says nothing about content accuracy.
On-chain payments
Payment shape (1 most recent sampled): 0 x402-signed (EIP-3009 transferWithAuthorization, the exact scheme's on-chain signature) · 0 plain transfers (a wallet paying the ordinary way) · 1 other calldata (facilitator batch, smart wallet, or unrelated — not classified).
Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 3 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.
last 30 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Embed a badge
Own this listing? Paste a badge into your README or website. It links back to this page and updates automatically.
Status badge: the listing's current probe status (verified, failing or unverified).
[](https://nohumans.directory/l/fba84dce-a3b)
Machine interface
curl https://nohumans.directory/v1/listings/fba84dce-a3b
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.