Pith Number

pith:JH4MCCVM

pith:2026:JH4MCCVMYRP4YKRSDPP3DW5DTJ

not attested not anchored not stored refs pending

Gravitational-wave standard sirens and application in cosmology

Liang-Gui Zhu, Wen Zhao, Youjun Lu

Gravitational-wave signals from compact binary mergers provide independent luminosity distance measurements to probe the Universe's expansion history.

arxiv:2605.08595 v2 · 2026-05-09 · astro-ph.CO · gr-qc

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\usepackage{pith}
\pithnumber{JH4MCCVMYRP4YKRSDPP3DW5DTJ}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Observations of gravitational-wave signals from compact binary mergers enable an independent measurement of the luminosity distance to the source. This implies that gravitational-wave sources can serve as standard sirens to probe the expansion history of the Universe, providing a new approach to constrain cosmological parameters.

C2weakest assumption

That gravitational-wave signals can be modeled accurately enough to extract luminosity distance and that redshifts can be reliably obtained either via electromagnetic counterparts for bright sirens or statistical methods for dark sirens.

C3one line summary

Gravitational-wave events from binary mergers act as standard sirens to independently measure luminosity distances and constrain cosmological parameters such as the Hubble constant and dark energy.

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

Model-independent H0 from GWTC-4 standard sirens and TDCOSMO 2025 strong lensing time delays

Receipt and verification

First computed	2026-06-19T16:10:38.669542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49f8c10aacc45fcc2a321bdfb1dba39a674f990b259a3f6dbff2af1b39533600

Aliases

arxiv: 2605.08595 · arxiv_version: 2605.08595v2 · doi: 10.48550/arxiv.2605.08595 · pith_short_12: JH4MCCVMYRP4 · pith_short_16: JH4MCCVMYRP4YKRS · pith_short_8: JH4MCCVM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/JH4MCCVMYRP4YKRSDPP3DW5DTJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 49f8c10aacc45fcc2a321bdfb1dba39a674f990b259a3f6dbff2af1b39533600

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc810bfebd944b1e845eecf2d8e231a2de44d0b3d029deeb2ee4efc9ab8ea4b7",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-09T01:25:00Z",
    "title_canon_sha256": "c70eb7d7ebb00c59036bcf7593a31268ded4adbb3787e7996d692a893770c983"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.08595",
    "kind": "arxiv",
    "version": 2
  }
}