Pith Number

pith:ERUDXXS4

pith:2000:ERUDXXS437FD6GUUQE4IOF3I6C

not attested not anchored not stored refs pending

Populations of high-luminosity density-bounded H II regions in spiral galaxies? Evidence and implications

A. Zurita, CSIC), Isaac Newton Group of Telescopes), J. E. Beckman (IAC Tenerife, J. H. Knapen (Univ. of Hertfordshire, M. Rozas, R. A. Watson (IAC)

arxiv:astro-ph/0003359 v1 · 2000-03-23 · 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{ERUDXXS437FD6GUUQE4IOF3I6C}

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	2026-07-04T16:16:13.292041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24683bde5cdfca3f1a948138871768f09634a949282aeab9e8ad81e691520af9

Aliases

arxiv: astro-ph/0003359 · arxiv_version: astro-ph/0003359v1 · doi: 10.48550/arxiv.astro-ph/0003359 · pith_short_12: ERUDXXS437FD · pith_short_16: ERUDXXS437FD6GUU · pith_short_8: ERUDXXS4

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/ERUDXXS437FD6GUUQE4IOF3I6C \
  | 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: 24683bde5cdfca3f1a948138871768f09634a949282aeab9e8ad81e691520af9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75da9f58c6b7d481097c821280222c8a3eb1feb086a7f92149884bef22b2c6e0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-03-23T19:58:50Z",
    "title_canon_sha256": "eb50e3a759e2d864475c3f50ceedaabc9f2b61cb6f481fa47b6d0e87e7450e3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0003359",
    "kind": "arxiv",
    "version": 1
  }
}