Pith Number

pith:RL34F7CD

pith:2012:RL34F7CDFXCZN4XQJJ5FA3QPKX

not attested not anchored not stored refs pending

Saha Equation Normalized to Total Atomic Number Density

Analysis Center, Caltech), John W. Fowler (Infrared Processing

arxiv:1209.1111 v2 · 2012-09-05 · astro-ph.SR · physics.atom-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{RL34F7CDFXCZN4XQJJ5FA3QPKX}

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	2026-05-18T03:44:33.250140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8af7c2fc432dc596f2f04a7a506e0f55cf918e35c34c02f17cb3aeeae407a3d0

Aliases

arxiv: 1209.1111 · arxiv_version: 1209.1111v2 · doi: 10.48550/arxiv.1209.1111 · pith_short_12: RL34F7CDFXCZ · pith_short_16: RL34F7CDFXCZN4XQ · pith_short_8: RL34F7CD

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/RL34F7CDFXCZN4XQJJ5FA3QPKX \
  | 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: 8af7c2fc432dc596f2f04a7a506e0f55cf918e35c34c02f17cb3aeeae407a3d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8532a711583a6414e02aa140e5757a1cade57e729bbc0f363c4fe64c045fe347",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-05T20:15:53Z",
    "title_canon_sha256": "29db48ef7e7febd8358b951de535cbb9cd77fa81a8557445ce59bb9c881883bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1111",
    "kind": "arxiv",
    "version": 2
  }
}