Pith Number

pith:OVAXTDUZ

pith:2011:OVAXTDUZUOI4DEKABQCKNIRDLP

not attested not anchored not stored refs pending

The Origin of Neutral Hydrogen Clouds in Nearby Galaxy Groups: Exploring the Range Of Galaxy Interactions

(2) Vanderbilt University, 3), (3) Fisk University, (4) NRL, (5) NRAO), Emil Polisensky (4), Glen Langston (5) ((1) NRC Postdoc at NRL, Katie M. Chynoweth (1), Kelly Holley-Bockelmann (2

arxiv:1108.4039 v1 · 2011-08-19 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OVAXTDUZUOI4DEKABQCKNIRDLP}

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

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	2026-05-18T02:00:50.312555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7541798e99a391c191400c04a6a2235bd7903cb754b289e627375e34f4f573ad

Aliases

arxiv: 1108.4039 · arxiv_version: 1108.4039v1 · doi: 10.48550/arxiv.1108.4039 · pith_short_12: OVAXTDUZUOI4 · pith_short_16: OVAXTDUZUOI4DEKA · pith_short_8: OVAXTDUZ

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/OVAXTDUZUOI4DEKABQCKNIRDLP \
  | 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: 7541798e99a391c191400c04a6a2235bd7903cb754b289e627375e34f4f573ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c4aeff75bb241bb19f0865a98560f799846ab56ea70b7fdd749e4ff5856ad44",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-19T20:01:16Z",
    "title_canon_sha256": "15fc894a5a6afc003d8e4fd5efa800d70a227fc122fb557aa62e2efbaaf8df22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4039",
    "kind": "arxiv",
    "version": 1
  }
}