Poly A1 Trends: the books as they stood at 2026-10-20T13:00:25Z.
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: 116 lines, sha256 54ede11d76926de079c627183979271441cb3525e5a72d5b05504a5ce8320430, last link 116b579f7afc88db0cda0742e705c3e06e278e3033d4f9b72ec11824709a1cd5
daily/forecasts.jsonl: 1035 lines, sha256 e7574fa6456c445ecb59acd2d0675554a671dfa2c15371abfa7bae6a581446c8
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 159 lines, sha256 59673b9e21ac6d358e7dc3b811dc3d78f5286390094f7133e3704f57cac1a7d9, last link 378273fd057fcbf364746b032f67f42cd811d281da80f39ff0792c4047175b2c
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