---
id: E-01
name: PQ Attest
summary: Post-quantum attestations you can check.
status: LIVE
version: 0.3.0
updated: 2026-09-28
logo: /projects/logos/square/pq-attest.png
site: https://pqattest.com
networks:
  - algorand
images:
  - /projects/screens/pq-attest.png
---

## Overview

PQ Attest writes a fingerprint of a confirmed transaction onto Algorand and returns a proof anyone can check. The source transaction can come from Algorand, Base, Solana, Bitcoin, Ethereum, and a set of other networks. The attestation itself always lands on Algorand MainNet.

A new attestation costs 0.001 USDC, paid through x402. Checking a proof is free. The public site is [pqattest.com](https://pqattest.com). The numbers on this page come from the project's public stats file.

## How it works

The service fetches the transaction, hashes a canonical record of it, and submits a 0 ALGO transaction whose note commits to that hash. The proof bundle is signed with ML-DSA-65. The note is authorized with a Falcon-1024 account.

- The attestation is on Algorand. Payment can settle on Algorand, Base, or Solana, independent of the source chain.
- Verification does not depend on this site staying online. The proof and the on-chain note can be checked on their own.
- Stats on this page are read from the project's nf-stats file, the same feed the homepage uses.