Poly A1 Trends: the books as they stood at 2026-10-17T14:22:50Z.
Each line: a book, how many lines of it, the sha256 of those lines, the hash of its last line.
Check: head -n <lines> <book> | shasum -a 256
daily/duels.jsonl: 81 lines, sha256 3d951fad83a3eaf7d2127dd074a2be9d643e976df2dbdf39e3a350474a3473fa, last link b7219a523685c9afb3f64e0f38bc4cdae9340e5b60688548aad382bb2e5d10e6
daily/forecasts.jsonl: 689 lines, sha256 6b7294b0ab04192a4089b616395b3791959fdce37e75705a88e7798582e95fcc
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 36 lines, sha256 15c99e7fa2546a072e540df99eec30e3786f0d5fdc2de0d520af9273832b98a9, last link 98914f4f799e64694fda00b63f48594c7e2fc32a8477db4b37241eaac03a87ae
daily/duels.jsonl boundary: first sealed line 8, prefix sha256 e619d691781c0dc1519d817f3f1ecec8c525e81689bdeccd4f2bf3cda6eaece0
The lines before it were written before the seal: head -n <line - 1> <book> | shasum -a 256