Provenance
Named upstream sources, method documentation and a stable landing page.
Palimpsest · Evidence Atlas
Find the evidence.
See how it was made.
Every public signal in one machine-readable catalog: what it observes, where it came from, when it last moved, what rights travel with it, and which file you can download. Active, passive, derived, gated and stale are never collapsed into “available.”
—documented datasets
—fresh public readings
—published history rows
—public evidence files
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Structure before score
The evidence loom
Each thread shows what a method does to evidence. A collection can be current while its conclusion abstains; a synthesis can be healthy while one input is stale. The paths remain separate so those states remain visible.
Drawing evidence relationships…
Stable URLs · explicit rights
Dataset directory
— matches. Search is local to this page; no query leaves your browser. Collection target is not a publication SLA; the evidence timestamp is authoritative.
fresh
stale / warming
gated / disabled
private node / no public distribution
pending / undated
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A dataset is a contract
What every catalog record promises
Time
Evidence time stays separate from collection time and website deployment time.
Denominator
Headline counts travel with coverage, missingness, abstention and freshness state.
Rights
Palimpsest code, schemas and original metadata are MIT-licensed. Source observations retain their publishers’ rights; every mixed-rights dataset says so explicitly and links its evidence. “Open GitHub repo” is not treated as a data licence.
Files
Current JSON and append-only history are distinct distributions with predictable URLs.
Limits
Active measurement, authorization, model cost and privacy boundaries are named, not hidden.