Pith Number

pith:WUYK3XGX

pith:2013:WUYK3XGXZ6NIIAS73NVLX4MUD3

not attested not anchored not stored refs pending

Three dimensional geometries and the analysis of H II regions

Barbara Ercolano, J. Dale, J.E. Barnes, Kenneth Wood, L.M. Haffner, R.J. Reynolds

arxiv:1304.1689 v1 · 2013-04-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUYK3XGXZ6NIIAS73NVLX4MUD3}

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	2026-05-18T01:50:42.482054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b530addcd7cf9a84025fdb6abbf1941edf86a8121f74e7c565b61461df4f8e4f

Aliases

arxiv: 1304.1689 · arxiv_version: 1304.1689v1 · doi: 10.48550/arxiv.1304.1689 · pith_short_12: WUYK3XGXZ6NI · pith_short_16: WUYK3XGXZ6NIIAS7 · pith_short_8: WUYK3XGX

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/WUYK3XGXZ6NIIAS73NVLX4MUD3 \
  | 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: b530addcd7cf9a84025fdb6abbf1941edf86a8121f74e7c565b61461df4f8e4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0103e307ed41989fb48c665b33bb4070921b36ef04eba1ec789548c2c40567a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-04-05T12:00:37Z",
    "title_canon_sha256": "b21aee990521bddb6e7fd50e1ae592823d1576841f1aa4bb15b7ab552603d180"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1689",
    "kind": "arxiv",
    "version": 1
  }
}