Pith Number

pith:4EUEG536

pith:2009:4EUEG536CJKZT2N7ANUYGFWVTV

not attested not anchored not stored refs pending

Search for Diffuse Neutral Hydrogen and HI Clouds in the NGC 2403 Group

Felix J. Lockman, Glen I. Langston, Katie M. Chynoweth, Kelly Holley-Bockelmann

arxiv:0905.0906 v1 · 2009-05-06 · 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{4EUEG536CJKZT2N7ANUYGFWVTV}

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	2026-05-18T02:13:46.992951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e12843777e125599e9bf03698316d59d78d44319d5d3ff36be03bb78d249855f

Aliases

arxiv: 0905.0906 · arxiv_version: 0905.0906v1 · doi: 10.48550/arxiv.0905.0906 · pith_short_12: 4EUEG536CJKZ · pith_short_16: 4EUEG536CJKZT2N7 · pith_short_8: 4EUEG536

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/4EUEG536CJKZT2N7ANUYGFWVTV \
  | 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: e12843777e125599e9bf03698316d59d78d44319d5d3ff36be03bb78d249855f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbbd23789ee31e2f0238372ece4ad1220ec86b764ce5927d1b0d7471a81ce25b",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-05-06T20:03:04Z",
    "title_canon_sha256": "b844df5b6542aa3c73b1513de706f4d23648a56b704824e8edb7c6a7efe2224f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0906",
    "kind": "arxiv",
    "version": 1
  }
}