Poly A1 Trends: the books as they stood at 2026-10-13T14:24:58Z.
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: 8 lines, sha256 e8733f93026148f4dfa6b5c4643022ac52cb4786f84407cfcf6fea22d67d07f0, last link 4e9cfe88276e1e5001c085f542c023b2101f055b3d9b201aef5521542d1f90c1
daily/forecasts.jsonl: 100 lines, sha256 ad6daa0f9de9bce76ad0c84615e9dd3c532c0ca96c5407818e9a53fc48359a43
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
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