Poly A1 Trends: the books as they stood at 2026-10-18T22:26:54Z.
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: 97 lines, sha256 6b021922b1522ecf8f31a7c2b3c78cec482c7be7ef466bbba7360a5948d7b542, last link 5aa4b58fbf4d08c45ab522704ef4361204144d42d268ae42f430c098d712932c
daily/forecasts.jsonl: 869 lines, sha256 192cdea23795ec3ac6efca7e655e78cb475068f6e165d79f6e7186cc1f54bb88
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 63 lines, sha256 c1871bc239cc5127f4544996ab48acf65d4542871f91bf31792dfca65a591bf7, last link 08d1b36a018ebf4f653fb0f324730d70657ac5882c421c0ff551fb4b174411d9
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