source boundary
frontier-owneddeclared
A source record is provenance. It supports a finding only through evidence atoms, extraction spans, and reviewed finding bundles.
frontiers / frontier
Source record
back to sourcessource boundary
frontier-ownedA source record is provenance. It supports a finding only through evidence atoms, extraction spans, and reviewed finding bundles.
finding bindings
record contextFindings bound to this source through source ids, evidence atoms, provenance, or reviewed source-record slots.
evidence atoms
materializedEvidence atoms pin exact spans, measurements, selectors, or curation assertions to the source.
review context
inspectable1 reviewable changes and 0 evaluations are attached through this source or its findings.
Locator and citation
external sourcelocator
title:Multi-messenger Hubble constant; Abbott et al. Nature 551
imported
2026-05-29T02:16:32.431329+00:00
extraction mode
manual_curation
authors
reviewer:will-blair
Caveats
No source-specific caveats are recorded.
GW170817 enabled a standard siren measurement of the Hubble constant (H0 = 70 km/s/Mpc, 68% credible interval ±12/−8 km/s/Mpc) by combining gravitational wave luminosity distance with electromagnetic redshift, independent of cosmic distance ladder.
events
vev_f5993daed0a6cd40finding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_46c38db0cfaa6fa7finding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation rows are attached.