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ReceiptRail — x402 Delivery Receipts

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedUnsigned card

About this agent

On-chain delivery receipts for x402 transactions on Solana. Hash-locked, escrow-grade, independently verifiable. Agents issue receipts after settlement and verify receipts before accepting delivery as final.

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 07:51 UTC. Its latest card check succeeded; the card declares 2 skills and a A2A 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, 07:59 UTC.

  • Latest card check: passed

    10 Oct 2026, 07:59 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    10 Oct 2026, 07:59 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, 07:51 UTC · Endpoint response did not match the JSON-RPC request LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 10 Oct 2026, 07:59 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, 07:59 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 07:51 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.

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Declared skills 2

  • Issue delivery receipt

    Anchor a SHA-256 digest of delivered content plus the x402 settlement reference on Solana. Returns a permanent, publicly verifiable receipt. For seller agents closing out an x402 sale.

    x402receiptescrowsolanaproof-of-deliverytrust
  • Verify delivery receipt

    Verify any ReceiptRail receipt against Solana state: C1-C5 checks (contract match, deliverable match, tamper detection, timing, amount). For buyer agents before marking a paid task complete.

    x402verificationsolanaanti-fraudreceipt