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WHP Standing — Wheeler Hubbell Publishing Verification Ping
x402
WHP Standing — Wheeler Hubbell Publishing Verification Ping is a paid API for AI agents from standing-guard-service.lovable.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-11).
Submits a subject and claim for machine-verifiable standing evaluation under explicit authority and bounds, returning a cryptographically signed verification record.
Price / call$0.1
Success—
StatusUnknown
How this service works
Machine-verifiable standing under explicit authority and bounds.
Output
Returns a JSON object containing: a verification record with a 'not_sealed_mark' flag and type info, an Ed25519 digital signature (algorithm, base64url-encoded value, and public key), and a SHA-256 hex hash of the record — enabling downstream parties to cryptographically verify the authenticity and integrity of the standing evaluation.
Example use cases
Verify publisher authority for a work
“Check the standing of 'Meridian Press Inc.' with the claim 'Meridian Press holds copyright authority over ISBN 978-3-16-148410-0' using provenance source 'Copyright Office Registry' and authority 'Meridian Press Inc.' — I need the signed verification record back.”
Attest editorial claim with provenance
“I need a machine-verifiable attestation that 'The Annual Review of Science' has editorial standing with the claim 'This journal is the authoritative source for the 2024 Annual Review of Science, Vol. 12', citing provenance from 'ISSN International Centre'.”
Validate agent identity claim
“Run a standing verification on the subject 'AgentNode-7734' with the claim 'AgentNode-7734 is authorized to act on behalf of Hubbell Media Group within the content distribution system' — provide the signed record and hash so I can confirm it hasn't been tampered with.”
Technical details
Endpoint
POSThttps://standing-guard-service.lovable.app/v1/ping?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cryptographically signed, machine-verifiable attestation of a subject's standing under an explicit authority — particularly in publishing, content rights, or agent authorization contexts. It is distinct from simple content hashing or generic notarization services because it combines claim-based standing evaluation with Ed25519 signatures and provenance tracking. Prefer it when downstream systems need to independently verify both the integrity (via SHA-256 hash) and authenticity (via public key signature) of a standing claim.
Side effects
- Missing required fields (subject or claim) returns a 400-level validation error
- Claim or subject exceeds maxLength limits (4000 and 2000 chars respectively) causes rejection
- Invalid bodyType or method enum value results in schema validation failure
- Payment not fulfilled (x402) results in 402 Payment Required before processing
- Service unavailability on lovable.app infrastructure returns 500 or timeout
- Malformed provenance object may be silently ignored or cause partial record
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"record": {
"type": "see VerificationPingResponse",
"not_sealed_mark": true
},
"signature": {
"alg": "Ed25519",
"value_b64url": "base64url",
"public_key_b64url": "base64url"
},
"record_hash": "sha256 hex"
}
}Tags
x402
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