Pith Number

pith:SSAUY2EM

pith:2018:SSAUY2EMKL6TU6HRTZG4BQZMOM

not attested not anchored not stored refs pending

Laboratory Photoionization Fronts in Nitrogen Gas: A Numerical Feasibility and Parameter Study

B. van der Holst, C. R. Patterson, H. Lefevre, J. S. Davis, K. G. Powell, P. A. Keiter, R. P. Drake, William J Gray

arxiv:1804.01539 v1 · 2018-04-04 · 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{SSAUY2EMKL6TU6HRTZG4BQZMOM}

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	2026-05-18T00:15:54.891737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94814c688c52fd3a78f19e4dc0c32c73360005818d184ee7c2c45f24a6290ed0

Aliases

arxiv: 1804.01539 · arxiv_version: 1804.01539v1 · doi: 10.48550/arxiv.1804.01539 · pith_short_12: SSAUY2EMKL6T · pith_short_16: SSAUY2EMKL6TU6HR · pith_short_8: SSAUY2EM

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/SSAUY2EMKL6TU6HRTZG4BQZMOM \
  | 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: 94814c688c52fd3a78f19e4dc0c32c73360005818d184ee7c2c45f24a6290ed0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abf3e1835f7c39ffb4c63679031b9169921e31b46c6e221b31017f2da5068809",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-04T18:00:07Z",
    "title_canon_sha256": "e25261dc3265bd229bd44756e7bdd30f26d331b117a5c94b8863ef066647ec40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01539",
    "kind": "arxiv",
    "version": 1
  }
}