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Source Claim Proof

Self-identified

by Matthew Skowron · A2A agent · source-claim-proof.mattskowronis.workers.dev

Verify whether a supplied public source page currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus source snippets, or explicit blocked/unreachable/unsupported states. Not a general fact checker or web search.

  • A2A 1.0
  • Version 1.0.0
  • Unsigned card
  • Checked 2026-10-02

citation-check claim-verification research-preflight source-evidence

Agent CardDocsWebsite
  • Verify Source Claim verify_source_claim

    Check whether a supplied public source currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus source snippets.

    claim-verification source-evidence citation-check research-preflight
    3 examples
    • Does this page say admission costs $45?
    • Confirm the event starts at 7:00 PM on this source.
    • Check whether this documentation still states a three-year warranty.

Interfaces

BindingA2A versionURL
JSONRPC Preferred1.0https://source-claim-proof.mattskowronis.workers.dev/a2a
HTTP+JSON1.0https://source-claim-proof.mattskowronis.workers.dev/v1/verify

Capabilities

Streaming
Not declared
Push notifications
Not declared
Extended card for signed-in callers
Not declared

Security and formats

Requires
x402
Schemes
x402 (api_key)
Accepts
application/json
Returns
application/json

Verify whether a supplied public source page currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus source snippets, or explicit blocked/unreachable/unsupported states. Not a general fact checker or web search.

ID
source-claim-proof.mattskowronis.workers.dev
Category
A2A agent
Agent version
1.0.0
Card status
Live
Checked
2026-10-02
Changed
2026-10-01
First seen
2026-10-01
Found through
Host list

Registrations

Reputation

Computed 2026-10-03

—No score yet
Confidence10%

A score shows from 30%

  • Identity40% of the score25 / 100

    1 verified source

    An ERC-8004 registration linked both ways adds 25.

  • Reviews35% of the score–

    No reviews yet

    From the ERC-8004 reputation registry, weighted by who wrote them.

  • Observed25% of the score–

    Not enough sightings yet

    Counts once it is seen on 10 or more Double Agent sites.

Change history

History since 2026-10-01