Pith Number

pith:MWPJO3RW

pith:2006:MWPJO3RWRF7W72LTNZSDP4GY4Q

not attested not anchored not stored refs pending

The Survey for Ionization in Neutral Gas Galaxies: I. Description and Initial Results

B. Koribalski, D.J. Hanish, E.V. Ryan-Weber, Gerhardt R. Meurer, H.C. Ferguson, J. Bland-Hawthorn M.A. Dopita, J.C. Lee, Jr., J. Werk, K.C. Freeman, L. Staveley-Smith, M.A. Zwaan, M.E. Putman, M.J. Drinkwater, M. Meyer, M.S. Oey, M.T. Doyle, P.M. Knezek, R.C. Kennicutt, R.C. Smith, R.L. Webster, T.M. Heckman, V.A. Kilborn

arxiv:astro-ph/0604444 v3 · 2006-04-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWPJO3RWRF7W72LTNZSDP4GY4Q}

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	2026-05-18T03:47:43.211243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

659e976e36897f6fe9736e6437f0d8e43425834dacb3663b345217ae035658d3

Aliases

arxiv: astro-ph/0604444 · arxiv_version: astro-ph/0604444v3 · doi: 10.48550/arxiv.astro-ph/0604444 · pith_short_12: MWPJO3RWRF7W · pith_short_16: MWPJO3RWRF7W72LT · pith_short_8: MWPJO3RW

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/MWPJO3RWRF7W72LTNZSDP4GY4Q \
  | 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: 659e976e36897f6fe9736e6437f0d8e43425834dacb3663b345217ae035658d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37c65302aaf5692388d5f2b18cabc4cf75a29c8fad5923d1812d0e76f54d2c6b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-20T20:13:46Z",
    "title_canon_sha256": "7bcdf79ae33a326013f9feef19bcef24269f16cb4098673ecb312d84bc31a8f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604444",
    "kind": "arxiv",
    "version": 3
  }
}