Poly A1 Trends: the books as they stood at 2026-10-21T13:00:35Z.
Previous list: 2026-10-21/130019Z.txt sha256 986bd13907397901ceed70131a70c3674eba05dfdcb9ededbc7cbc0e57bd3714
Each line: a book, how many lines of it, the sha256 of those lines, the hash of its last line.
Bytes: the file as stored (UTF-8, no BOM, nothing re-encoded or normalised); a line ends with LF (0x0A); the sha256 of N lines covers lines 1..N, each with its final LF (a CR before it stays); a last line without LF is not counted yet
Check: head -n <lines> <book> | shasum -a 256
daily/duels.jsonl: 127 lines, sha256 637f6d9277a0877d0c4cb24bdfc28016888230cfa5fbcf8b4b378cda9cd60240, last link f3541432e906b27b1d6c94ddd530a0645cb39dc16f5327cbe46f9baa9c7db839
daily/forecasts.jsonl: 1143 lines, sha256 3241b4f1b97413cb27ef0e1d81bb621bf8053aa39c46e367a42b39ee066cf028
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 222 lines, sha256 a9359a7741ef5f7aad7436e022a60813e2fc2f9ce76e130abe21dc820e59bd8c, last link e28f67e917496a6e9bde6db277b8859eda407d4ef34d0d12bee6c60bf02309b6
daily/council/asks.jsonl: 33 lines, sha256 977943b65dd2e78f9bcb56ebee167aa4c8dfd234f23669e31e402c2edcb1307c, last link 78413283898a66e4bcdf5c45b2ed0c9d5a759cdf97a73c9fc81a8d5464ba1464
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