Poly A1 Trends: the books as they stood at 2026-10-21T03:34:34Z.
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: 123 lines, sha256 a699f5e0868c5dddc81a0cc857c234f564d2385ba66a3812dba082cdfda6e56f, last link df1659871c7a265163f990b24ddb47bee7753cb6dd59007921cd9ba538204cc4
daily/forecasts.jsonl: 1103 lines, sha256 321ec1f005e39691b759e9e1ce8931d16ca214cd7393cf187b2de61d5739e699
forecastbench/book.jsonl: 18 lines, sha256 df3d7ab8170fdae3bb29cfc30732b4819c4b62278ddcc29ccc2847a583529549
daily/council/book.jsonl: 212 lines, sha256 a50531dfb3916930a7b027ef2e3c2585a79227253fa0b1f2a04046e1d562c75d, last link adbe10a5ef478bf02e18f56206c32b0c095c989f021b67e3df82a71dd9e0f01b
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