Pith Number

pith:NJFXR3LU

pith:2020:NJFXR3LUZZUZRG4PBMCLXHGPHT

not attested not anchored not stored refs pending

First measurement of the Hubble parameter from bright binary black hole GW190521

Alessandra Silvestri, Archisman Ghosh, Benjamin D. Wandelt, Christos Karathanasis, Ignacio Maga\~na Hernandez, Mansi M. Kasliwal, Matthew J. Graham, Samaya M. Nissanke, Suvodip Mukherjee

arxiv:2009.14199 v1 · 2020-09-29 · astro-ph.CO · astro-ph.HE · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NJFXR3LUZZUZRG4PBMCLXHGPHT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Cited by

2 papers in Pith

In the Realm of the Hubble tension $-$ a Review of Solutions

Cosmological Constraints from GW-FRB Associations without Redshift Measurements for LIGO-Virgo and Cosmic Explorer

Receipt and verification

First computed	2026-07-05T01:39:17.295104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a4b78ed74ce69989b8f0b04bb9ccf3ce12cd7012605a49f97f008698e7f84a4

Aliases

arxiv: 2009.14199 · arxiv_version: 2009.14199v1 · doi: 10.48550/arxiv.2009.14199 · pith_short_12: NJFXR3LUZZUZ · pith_short_16: NJFXR3LUZZUZRG4P · pith_short_8: NJFXR3LU

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/NJFXR3LUZZUZRG4PBMCLXHGPHT \
  | 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: 6a4b78ed74ce69989b8f0b04bb9ccf3ce12cd7012605a49f97f008698e7f84a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad3dd49cd3fe0c573662c5362224483a850229ece88a6b120c3c65d6a08d8742",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-09-29T18:00:00Z",
    "title_canon_sha256": "d44b2b5bb65df0ef3bdd18cb7c52548cd2cedd51d0e13d4d434b6c03ee443ff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.14199",
    "kind": "arxiv",
    "version": 1
  }
}