10 rungs. Each one starts pending and only counts once its proof is audited. Together, this family adds at most 16 points to the evidence block, so reaching the top takes proof from several families.
Someone who is not you has checked that it works: a clinical or field trial, a certification, a peer-reviewed paper, or measured results from a pilot.
Proof asked for: The report, the certificate or the reference of the publication
Your method or your results have passed review by other researchers and are published.
Proof asked for: DOI or full reference of the publication
Your technology measured with the same yardstick as everyone else, in a test you do not run.
Proof asked for: Link to the leaderboard showing your position and the date
An external firm tried to break it and you closed what they found. Without this, no large customer signs.
Proof asked for: The audit report naming the auditor and the date
An ISO standard certified by an accredited body: 27001, 9001, 13485… Whichever applies to you.
Proof asked for: Certificate with its number, the body and the validity dates
A registered trial, with its ethics committee approval and its results. The most expensive and least arguable proof there is.
Proof asked for: Trial registration number and the results report
Tested outside the lab in real conditions, with somebody external measuring: a farm, a plant, a site, a fleet.
Proof asked for: The trial report, naming who ran it and where
A technology centre or a university has verified that your technology does what you say.
Proof asked for: Report or agreement with the centre, naming it
Your product meets the standard that applies to it and a certification body says so: industrial CE marking, ATEX, IP, whatever fits.
Proof asked for: Certificate stating the standard and the body
Your carbon footprint or your environmental saving, calculated with a recognised methodology and verified by a third party.
Proof asked for: Verification report stating the methodology used
On the free plan you can send one rung a month to audit. The FounderSeal is informative: it describes what has been checked, it never recommends investing.