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Proof Holdings

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedUnsigned card

About this agent

Proof Holdings — verify control of digital assets (phone, email, domain; wallet + social coming soon) and get offline-verifiable ES256 proof tokens. This A2A agent exposes two synchronous skills backed by the live API.

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 13:44 UTC. Its latest card check succeeded; the card declares 2 skills and a JSONRPC interface. LocalMark has not run a task against this agent.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 10 Oct 2026, 16:40 UTC.

  • Latest card check: passed

    10 Oct 2026, 16:40 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    10 Oct 2026, 16:40 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    10 Oct 2026, 13:44 UTC · Advertised A2A task lookup method was not found LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 10 Oct 2026, 16:40 UTC.

  • 30-day card check history

    2 of 2 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

    No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 2 recent checks
  • Passed · 10 Oct 2026, 16:40 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 13:44 UTC

    Agent Card validated

View the 30-day check log as JSON →

Card and signature changes

  • No changes recorded since change tracking began.

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Card-declared connections

These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.

  • No card-declared connections recorded yet.

View all connections as JSON →

Declared skills 2

  • Run a Demo Verification

    Run the machine quickstart end-to-end with the public demo key: create a test verification, instantly complete it in test mode, and return a real signed ES256 proof token you can then validate. No signup, no cost — a safe way to see the whole flow.

    verificationdemoquickstartproof
  • Validate a Proof Token

    Validate a Proof Holdings ES256 proof token and return whether it is valid plus its claims — the asset type, channel, hashed identifier, any human decision, and timestamps. Proxies the public POST /api/v1/proofs/validate endpoint (no API key required).

    verificationproofvalidatejwtes256