Observed arrival · 2026-11-06

Atomic weights, with a version history

atomicweights.org Visit website

Editorial interest 83/100 Selection signal · not a rating of the site

An unofficial prototype proposes publishing isotopic abundances and atomic weights as linked data, with downloadable formats and a SPARQL endpoint.

Landing page captured for the 2026-11-06 issue.

For: Researchers and developers working with atomic-weight data
Worth noticing: The model records exact decimals separately from significant figures and uses SHACL shapes to check the published data.

Field notes

The site presents its tables as generated from RDF and pairs them with a data model described as a DCTAP profile, checked using SHACL shapes. Its revision example keeps an earlier value declaration available when a value changes, while the listed downloads cover five RDF serialization formats. The author invites corrections through an issue tracker and identifies the work as an unofficial suggestion.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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