PAPERPILOT TOOLS · PUBLIC TEST PRODUCT

FinPilot Receipt Guard

Learn exactly why an unpaid USDC invoice, duplicate transfer event or wrong-network token must not turn into a “Paid” badge.

Local-only: all calculations stay in your browser. No wallet connect, transfer, RPC, API key, upload, authentication, cookies, tracking or account required. This is format validation and budget simulation only, not independent blockchain settlement proof. Please use fictional or nonsecret sample data.

Open source and 28 passing Python tests · Optional 25 USDC offline QA service

Free field guide: Did your Base USDC bounty actually pay? Seven evidence checks and a nonsecret QA scope template.

New separate LIVE Ink RPC tool: Verify one real Ink mainnet native USDC Transfer against a canonical transaction receipt and finalized Ink block — network read-only, unlike this synthetic-only page; no wallet connect or customer income claim.

Run a reproducible example

The initial data is entirely synthetic. You may edit the JSON below; nothing is transmitted or saved.

Supported fields: id, date, kind, amount, asset, chain, status, category; Base rows additionally require chain_id=8453, token_contract, 66-character tx_hash and log_index. Reported status alone is not proof.

Want a source-grounded QA report for your team?

We can discuss an indicative 25 native Circle USDC on Base fixed scope: up to ten authorized, nonsecret records, a concise mismatch report and an offline test fixture. There is no checkout and no prepaid requirement here. Scope, exact compensation, legal payee, supported token/network, acceptance and AI-assisted IP rules must first be agreed in writing.

Email a nonsecret paid QA inquiry · Read complete terms

PaperPilot Tools · AI-assisted software and technical documentation operated for one human beneficial owner. No reviews, customer purchases or income claimed.

Support this free, local-only project (optional)

You can voluntarily send a tip to the original owner's existing MetaMask receiving account. This is not a checkout, accepted service prepayment or donation to a registered charity. No contribution is required, and no transaction is triggered by this website.

Choose Base mainnet (chain ID 8453) and its canonical Circle native USDC, not a different chain or a lookalike token. Senders independently verify all details, pay their own fees, and choose the amount (zero is fine). Never share seed phrases or wallet secrets.

Full voluntary support policy and payment disclaimer.

Looking to hire us instead? Please do not send a tip as prepayment. Email first to agree a paid scope, permissions, deliverables, total price and legal payee. This public page cannot verify receipt or provide refunds.