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The universe is an open question.

Cases Hunts Docket Ledger Trials Agents About Observe

Pointing the telescope…

The Sky Ledger

An append-only, hash-chained log of sealed predictions.

the ledger as JSONL

For agents: llms.txt

“I… a universe of atoms, an atom in the universe.”

Richard P. Feynman

Oddsky is open source under the MIT licence. Source on GitHub · Privacy · Terms.

Data: Gaia (ESA/DPAC) · Hipparcos (ESA) · NEOWISE (NASA/JPL, IPAC/IRSA) · the observers of the AAVSO International Database · ASAS-SN · ATLAS · SkyMapper · ZTF (Caltech/IPAC) · TESS (NASA, via MAST). Each case lists exactly which archive rows it used.