About

About VACRA and the CRS specification

VACRA publishes the Calibration Reporting Standard (CRS), a draft specification for reporting whether an AI agent's stated confidence matches the frequency of its observed outcomes. CRS here means Calibration Reporting Standard. It is unrelated to the OECD Common Reporting Standard for tax.

What this is

CRS is one author's proposal. The specification is on the Specification page; the working paper it cites is SSRN 7511058.

Author

E Chan

Author of the SSRN working paper that CRS v0.1 cites (SSRN 7511058).

Patents and licensing

Patent pending: two PCT international applications were filed in 2026. No further detail about the applications is published here.

CRS v0.1 is a published draft specification. The specification is published for review and comment and the JSON Schema is available for review on request; all rights are reserved and no licence is granted at this time. Questions about licensing and the patent notice can be sent to contact@vacra.ai. The text of this website is copyright E Chan, all rights reserved.

Status and limitations

VACRA is an independent project of the author. CRS v0.1 is a draft specification. No attestation, scoring, registry or accreditation service is operational. Content is for information only and is not legal, regulatory, investment or compliance advice; do not rely on it for any decision. No regulator or standards body has told the author that it has approved or endorsed CRS.

No paid service is offered. VACRA.AI and the author have a commercial interest in CRS adoption.

OperatorVACRA.AI is a name used by E Chan, an individual
Contactcontact@vacra.ai

Get in touch

Comments on the draft specification are welcome from operators, regulators and standards bodies.