Pith Number

pith:N4PUZAYA

pith:2013:N4PUZAYAIUWRXASL2P6AEIILSI

not attested not anchored not stored refs pending

Time-dependent Photoionization of Gaseous Nebulae: the Pure Hydrogen Case

E.E. Elhoussieny, J. Garc\'ia, M.A. Bautista, T.R. Kallman

arxiv:1308.0258 v1 · 2013-08-01 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N4PUZAYAIUWRXASL2P6AEIILSI}

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	2026-05-18T01:48:31.605839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f1f4c8300452d1b824bd3fc02210b9232c1f1b1be5d2c4dbb1031d36a184122

Aliases

arxiv: 1308.0258 · arxiv_version: 1308.0258v1 · doi: 10.48550/arxiv.1308.0258 · pith_short_12: N4PUZAYAIUWR · pith_short_16: N4PUZAYAIUWRXASL · pith_short_8: N4PUZAYA

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/N4PUZAYAIUWRXASL2P6AEIILSI \
  | 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: 6f1f4c8300452d1b824bd3fc02210b9232c1f1b1be5d2c4dbb1031d36a184122

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4899cb283ca29b824335ee40be6485db4d24a21160eb8b8f6d6ffd1af9f0cf6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-08-01T16:18:34Z",
    "title_canon_sha256": "12b5a8f067f4911e6906922cb2959edf4b06f1850dc6eb052e6cdbff6f78c28d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0258",
    "kind": "arxiv",
    "version": 1
  }
}