FACT-Ray: how far to trust a fact
FACT-Ray 0.1 beta (provisional) · built inside GAMMA-Ray first; it will move to its own site
GAMMA-Ray says how mature an agent is. FACT-Ray says how far to trust each fact behind that. It does not say whether a fact is true. It says who is saying it, how firmly it is recorded and proved, and who stands behind it.
A score is written with its three coordinates, always:
FACT-Ray · π High+ · S3·R4·A3
That reads: band High, corroborated (+); Source 3 (a counterparty, such as a customer), Record 4 (linked to an artefact anyone can open), Accountability 3 (validated by a practitioner). The symbol π is for the Greek pistis, which means both trust and proof.
- Source: who is saying it? We found it (1), the subject says it (2), a counterparty says it (3), an independent authority says it (4).
- Record: how firmly is it recorded? From said (1) to captured, hashed and checked by someone else (5).
- Accountability: who stands behind it? From nobody (0) to a panel of independent signers (5).
Source and Record give a band from a published matrix. Accountability caps it: however strong the source, a record nobody has checked cannot be trusted beyond what that check supports.
One worked example, live
Live: taken from a published card at this build.
The fact: "Its actions are logged", read from the words "every finding and fix is logged from detection to verified fix", on AISLE platform (indicator I41, an operation fact).
| Axis | Read as | Why |
|---|---|---|
| Source | S1 Discovered | An agent (gamma.studio@web-summit.dinis) read the public page and interpreted it. The company has not said it to us. |
| Record | R5 Reviewed | The page was captured and hashed (sha256 dff44af85ee36354, read 2026-11-10), and a reviewer other than the producer went through the scan. |
| Accountability | A1 ×3 | Checked by gamma.review@web-summit.dinis and gamma.approve@web-summit.dinis: same model family, shared repository. No human. |
The matrix gives S1 by R5 = High. Accountability A1 caps it at Moderate. The fact reads π Moderate · S1·R5·A1 ×3.
That is what "beta" means on every card on this site today, said exactly: found by an agent, captured and hashed, checked by other agents of the same family, no human. It is also why the strongest thing a company can do is say it on its own website.
The strongest claim is on your own website
A company answers for itself by publishing one file at a known address on its own domain: /.well-known/fact-ray.json. Hosting it there is the identity check, the same idea as security.txt. Its claims are read at Source 2 at once, and a customer's file on the customer's own domain is read at Source 3. The schema, examples and a validator.
The same rules for us
Our own publications are scored first. This site publishes its own file, and every published card carries the trust of the facts behind it.
The standard · The matrix · The actors · Well-known files · Examples · Where it is applied