chronology

A point‑in‑time archive for forecasting research

Chronology records news and public data with timestamps, so AI agents can be trained and tested on the past without seeing the future.

Will the central bank cut rates at its next meeting?

t = Sep 14

the problem

Forecasting agents are trained and tested on questions whose answers are already known. A fair setup gives the agent only what was known at the time. Most data sources return today's version of the world instead: revised statistics, renamed pages and articles published after the question closed. A backtest built on them leaks the answer.

Chronology answers each request as of a time t and returns only what was public by then.

data

datasourceas of t
news—Articles published by t
economic dataFREDValues as first reported by t
wikipedia—The revision at t
web pagesInternet ArchiveThe latest snapshot by t
prediction marketsKalshi, PolymarketPrices at t, outcomes settled by t

research directions

forecasting

Agents that research a question and forecast it, trained and tested with backtests that can't leak.

agent systems

Point-in-time sandboxes, where the tools an agent calls (search, web, data) answer as of t, for training and evaluation at scale.

retrieval

Search that finds what an agent needs at a given moment, measured on real agent queries.

data quality

Clean, dated events and entities from raw news, with automated checks and repairs that keep the archive accurate.

continual learning

Models that keep learning as time moves forward, trained only on what was known at each moment.