Poly A1 Trends: the books as they stood at 2026-10-19T15:34:41Z.
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: 105 lines, sha256 b66b8c43da42c06ae07063c42d7b2fe6287c127aeb05760294e63b3b369908f2, last link 459cf319b04cd3d9e7069d6cd7ee215d73edfe20062a44d62d2a74e1a3e38c94
daily/forecasts.jsonl: 936 lines, sha256 dffb29bcd34a305167598020423cc0b73b541cb1cedc5b43f47778858ce79f81
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 89 lines, sha256 6bd3983cc48c4b89f0b689f9a12c33b12109a0101d00b6781339cf66bf4283c5, last link 6aeb2c3069a861cc7d05e269c023323801ffb7541c9d988464de3ca110dd90c4
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