Pith Number

pith:PXJNC4OT

pith:2019:PXJNC4OTWRRGLVBAKN56XYPJL4

not attested not anchored not stored refs pending

Structure and Expansion Law of HII Regions in structured Molecular Clouds

Bastian K\"ortgen, Enrique V\'azquez-Semadeni, Javier Ballesteros-Paredes, Jos\'e Franco, Lee W. Hartmann, Manuel Zamora-Avil\'es, Ricardo F. Gonz\'alez, Robi Banerjee, Steven N. Shore

arxiv:1903.01644 v2 · 2019-03-05 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PXJNC4OTWRRGLVBAKN56XYPJL4}

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	2026-05-17T23:45:29.425106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7dd2d171d3b46265d420537bebe1e95f173a89c2ad2ae094538eff3b9fb03eb3

Aliases

arxiv: 1903.01644 · arxiv_version: 1903.01644v2 · doi: 10.48550/arxiv.1903.01644 · pith_short_12: PXJNC4OTWRRG · pith_short_16: PXJNC4OTWRRGLVBA · pith_short_8: PXJNC4OT

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/PXJNC4OTWRRGLVBAKN56XYPJL4 \
  | 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: 7dd2d171d3b46265d420537bebe1e95f173a89c2ad2ae094538eff3b9fb03eb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4dd9eb2b979c86871de29d7a96db9edf0a103d625db44983d16b05bc1f71c40",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-05T03:22:28Z",
    "title_canon_sha256": "e269fadad7718c92792f96f7690ed5f7ceac4301f0d0a91f37fbd1a20b56277c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01644",
    "kind": "arxiv",
    "version": 2
  }
}