Pith Number

pith:W5DRJ4E2

pith:2011:W5DRJ4E2UA2JW7SOFU4OWP3GZO

not attested not anchored not stored refs pending

The intriguing HI gas in NGC 5253: an infall of a diffuse, low-metallicity HI cloud?

Angel R. Lopez-Sanchez, Baerbel Koribalski, Cesar Esteban, Emma Kirby, Helmut Jerjen, Janine van Eymeren, Nyssa Lonsdale

arxiv:1109.0806 v1 · 2011-09-05 · 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{W5DRJ4E2UA2JW7SOFU4OWP3GZO}

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	2026-05-18T02:00:40.081786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b74714f09aa0349b7e4e2d38eb3f66cba051ac83a650b2a67110bda02a68ddd2

Aliases

arxiv: 1109.0806 · arxiv_version: 1109.0806v1 · doi: 10.48550/arxiv.1109.0806 · pith_short_12: W5DRJ4E2UA2J · pith_short_16: W5DRJ4E2UA2JW7SO · pith_short_8: W5DRJ4E2

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/W5DRJ4E2UA2JW7SOFU4OWP3GZO \
  | 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: b74714f09aa0349b7e4e2d38eb3f66cba051ac83a650b2a67110bda02a68ddd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9639e55ba11f81f1075f2329feae0699329ab7617b64c9a0b66b96aad73d3b25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-05T06:41:14Z",
    "title_canon_sha256": "ff3dbdbbefbcf0d794c79cbfffbc2944a42b7b29853e178945121b03745ed1d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0806",
    "kind": "arxiv",
    "version": 1
  }
}