the402 endpoint detail

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umpire.vimabrosta.com verdicts witness

https://umpire.vimabrosta.com/v1/verdicts/witness

no payment challenge

Proof that the world changed the way your agent says it did. One live probe of a public URL against your expectation (HTTP status, keyword, CSS selector, JSON path), answered synchronously as an Ed25519 signed verdict that embeds a signed observation: final URL, resolved address, TLS certificate fingerprint, response headers, raw body sha256, timestamp. A stake free witness against false success,

Bazaar lists this endpoint, but when we called it we got HTTP 422 instead of a payment challenge.
Price
250000 atomic
Network
not established
Pay to
-
Spec dialect
-
Transport
-
HTTP method
POST
Response latency
307 ms
Payment options
0 usable of 0
Last checked
2026-09-06T01:19:09.378Z (37d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fumpire.vimabrosta.com%2Fv1%2Fverdicts%2Fwitness"