Pith Number

pith:W22HQOA7

pith:2022:W22HQOA7ABVQOUYFLXFMWZ2DTV

not attested not anchored not stored refs pending

The variation of the gas content of galaxy groups and pairs compared to isolated galaxies

Aaron S. G. Robotham, Andrew M. Hopkins, Angel R. Lopez-Sanchez, Angus H. Wright, Benne W. Holwerda, Claudia del P. Lagos, Danail Obreschkow, Garima Chauhan, Jonghwan Rhee, Joss Bland-Hawthorn, Kristof Rozgonyi, Luke J. M. Davies, Maritza A. Lara-Lopez, Martin A. Zwaan, Martin J. Meyer, Matthew T. Whiting, Richard Dodson, Sabine Bellstedt, Sambit Roychowdhury, Simon P. Driver

arxiv:2201.03575 v1 · 2022-01-10 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W22HQOA7ABVQOUYFLXFMWZ2DTV}

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.

Receipt and verification

First computed	2026-07-05T04:03:01.523230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6b478381f006b0753055dcacb67439d49b940047db3bad856712c744a14ff50

Aliases

arxiv: 2201.03575 · arxiv_version: 2201.03575v1 · doi: 10.48550/arxiv.2201.03575 · pith_short_12: W22HQOA7ABVQ · pith_short_16: W22HQOA7ABVQOUYF · pith_short_8: W22HQOA7

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/W22HQOA7ABVQOUYFLXFMWZ2DTV \
  | 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: b6b478381f006b0753055dcacb67439d49b940047db3bad856712c744a14ff50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94bb8ea54870b26e31ffbb13499278c8775214cb81f1a0e07848aacb89808e3e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-01-10T19:00:02Z",
    "title_canon_sha256": "2c05051788128254f885948dc715170f8522998fe06bcd9a5b9a670ab0534d03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.03575",
    "kind": "arxiv",
    "version": 1
  }
}