pangenome-range

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pangenome-rangeRegional pangenome queries from one static object

A Rust encoder and portable TypeScript reader/viewer designed for exact HTTP byte-range access without a custom query server.

Explore named chicken paths
Open the large human pangenome

Static-object delivery

Immutable .pngr archives are designed for ordinary HTTP origins, object stores, and CDNs.

Native construction

The Rust CLI owns encoding, verification, and reproducible research measurements.

Portable access

The public npm package opens local or remote file-format-v1 objects, renders regional tiles, and launches the optional native encoder CLI without coupling it to browser imports.

Workspace package API: pangenome-range@0.1.0

The current file-format v1 is a pre-release research prototype, not a stable interchange format. Older research objects are intentionally unsupported. It removes the rejected global occurrence index and exposes anonymous weighted tile-local haplotypes explicitly; see the semantics decision and optimization log. The browser reader, decoder, and bounded Canvas 2D viewer are implemented and exercised through exact range responses in a built-site Playwright gate. The demo also opens local files and configurable remote archives.

Start with the range-read walkthrough, the normative file-format v1, the architecture, the fixed-window archive description, and the benchmark definitions.

How a range query works ​

A .pngr object is laid out so a browser can answer a genomic region with a small bootstrap, one arithmetic directory lookup, and one parallel payload round. No query server.