Poly A1 Trends: the books as they stood at 2026-10-19T01:24:39Z.
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: 98 lines, sha256 1fb6ea4f56c2f2ae11e407ac685e756838f744da81f4346462ef94061bba1361, last link 9a4640c7d3387d5d6328f5bab37396646e48ec87d67141904e786830e2f0aa71
daily/forecasts.jsonl: 879 lines, sha256 35c964a493d2276c39d8fc2f967752a75c382e4e24fd825919b81fa0e1553a86
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 64 lines, sha256 47a4c552c6d5688e322d16a8be191d1a1ca1b214aa3bfa3ad0a230a242c7ff00, last link f7ae1389d3f4154c135b75f5d937e31e73c113a85c5ea2bc3b5c776ed8e5f3a7
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