Pith Number

pith:ZMZWYSMC

pith:2003:ZMZWYSMCXSABAQZERCQTOQYHN2

not attested not anchored not stored refs pending

Atomic gas far away from the Virgo cluster core galaxy NGC 4388. A possible link to isolated star formation in the Virgo cluster?

Bonn, B. Vollmer, Germany), W. Huchtmeier (MPI fuer Radioastronomie

arxiv:astro-ph/0304136 v1 · 2003-04-08 · 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{ZMZWYSMCXSABAQZERCQTOQYHN2}

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	2026-07-04T16:36:48.962249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb336c4982bc8010432488a13743076e8d4bd5289e5b623b2a8664abb130a296

Aliases

arxiv: astro-ph/0304136 · arxiv_version: astro-ph/0304136v1 · doi: 10.48550/arxiv.astro-ph/0304136 · pith_short_12: ZMZWYSMCXSAB · pith_short_16: ZMZWYSMCXSABAQZE · pith_short_8: ZMZWYSMC

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/ZMZWYSMCXSABAQZERCQTOQYHN2 \
  | 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: cb336c4982bc8010432488a13743076e8d4bd5289e5b623b2a8664abb130a296

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e33995947c8a8452a4164ea45ec77833fc54420563c37cd067b68dec0af2969",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-08T09:17:41Z",
    "title_canon_sha256": "761e6bcd96572bf2ccbfa697d852d7228fa64544809feb62b61de6be0d5cd1d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304136",
    "kind": "arxiv",
    "version": 1
  }
}