Archive

An issued number is never edited. A correction is issued under a new date and the superseded issue stays here. Each entry links its frozen Source — the file whose SHA-256 is printed in the foot of every page of the PDF. Hash that file, not the reading page, which wraps it.

Only issues are listed here. The Bench is not an issue and is not listed: it is the blog, about what other people ran rather than what we ran. It carries volume numbers from Vol 002 so an issue can be cited by name, but a Bench volume is not an issue number and does not appear in this archive. It lives here. What separates the three is set out in Definitions.

The Calibration

The Log

The registry

figures.json — every citable figure with the first sixteen characters of the SHA-256 of the files it was computed from, and the conditions under which it was measured. Of the twenty-six files behind those digests, twenty-two can be downloaded — twenty-one at Run files, with their hashes, and the cross-model data — so a reader can recompute the figures. The other four are the probe bank, whose held-out half is never published, and three working files of figures for The Calibration Vol 002 and Vol 003, not posted yet. See AI Safety + Governance for which files are served as recorded and which are redacted.