Poly A1 Trends: the books as they stood at 2026-10-17T17:54:12Z.
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: 83 lines, sha256 4a070a2264b71b5e2ae4f3d170a7f6ea6a30c5837d42263e9d2daf96d1ff2316, last link 942926919d494cca3d876b35f629071b79dcc80f83ef6ecb328aaca7acf188a2
daily/forecasts.jsonl: 709 lines, sha256 fba652a3c25db65332ae0fabd8faf3d56943ab2e166f4da58d777eda7cbb138d
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 37 lines, sha256 20d92bb6774e869ae6ccb91cc6912ff32cffa7b9a7f56dfe1f3a519315f5969b, last link 4670645f900a902d8ead0dd924f7d0b867fb07d021796e1e50987b2dabb0e41a
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