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About

Who is behind ScopeBlind.

ScopeBlind is a small Australian company with one founder. Its current product is the Fin bill check, in early access: it compares each Fin invoice with the terms you enter and Fin’s own exported records, and shows what differs and what could not be checked. It runs in your browser, and nothing is uploaded. Check your bill.

The company

Company
ScopeBlind Pty Ltd
Registered
ACN 693 027 440, ABN 41 693 027 440
Where
Sydney, New South Wales, Australia
Founded and run by
Tom Farley

Beside the bill check, ScopeBlind makes two other tools: client review for agencies, where a client approves the exact version that is merged, and protect-mcp, a free policy gate for coding agents. The Terms and the Privacy page name the same company and the same address.

For AI vendors

If you sell AI per outcome and want your buyers to be able to check every count, with the same calculation on both sides from the same evidence, write to support@scopeblind.com.

Public work you can check

The formats and the tools under the service are published. Each item below links to where it lives; the version numbers were read from those pages on 6 October 2026 and may have moved on.

  • draft-farley-acta-signed-receiptsAn IETF Internet-Draft: Signed Decision Receipts for Machine-to-Machine Access Control. The receipt format ScopeBlind records follow.Individual submission by Tom Farley, version 03 of 29 August 2026. An Internet-Draft is a working document; it is not endorsed by the IETF.Read the draft on the IETF datatracker
  • @veritasacta/verifyThe open verifier. It checks receipts, standards, runs and decisions offline, without a ScopeBlind account.Published on npm under the Apache-2.0 licence. Version 0.10.21 at the time of writing, with its conformance vectors.The verifier on npm
  • protect-mcpThe open gateway and receiver: it checks an agent’s tool calls against a signed standard and applies only approved versions to a repository.Published on npm under the MIT licence. Version 0.31.0 at the time of writing; source on GitHub.The gateway on npm
  • Veritas ActaThe open protocol for signed, verifiable machine decisions: Ed25519 receipts and hash-chained records that anyone may implement.Public on GitHub under the Apache-2.0 licence, with the drafts that describe the formats.Veritas Acta on GitHub

How the company works

  • The verifier is open. A record made here can be checked without ScopeBlind: in your browser on Verify, or offline with the open verifier. If the company disappeared tomorrow, your records would still check.
  • No tracking. No accounts, no cookies, no analytics, no third-party scripts, and self-hosted fonts. The site’s content security policy enforces it; Security says what runs where.
  • Honest claims. Every page says what a record does not prove. The Status page runs its checks from your own browser, the Changelog says what shipped and when, and we do not claim certifications we do not hold.

Contact

Write to support@scopeblind.com for anything: a question about the product, a plan, a data request, or a security report. One address, read by the person who builds the product.