Pith Number

pith:4EH3KG6X

pith:2012:4EH3KG6XZQ4IYTFP42P4Y73AFJ

not attested not anchored not stored refs pending

Improved He I Emissivities in the Case B Approximation

G. J. Ferland, M. J. Detisch, P. J. Storey, R. L. Porter

arxiv:1206.4115 v1 · 2012-06-19 · astro-ph.CO · 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{4EH3KG6XZQ4IYTFP42P4Y73AFJ}

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	2026-05-18T01:56:51.148691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e10fb51bd7cc388c4cafe69fcc7f602a55526686350a5cae038ddb8e2afdfaea

Aliases

arxiv: 1206.4115 · arxiv_version: 1206.4115v1 · doi: 10.48550/arxiv.1206.4115 · pith_short_12: 4EH3KG6XZQ4I · pith_short_16: 4EH3KG6XZQ4IYTFP · pith_short_8: 4EH3KG6X

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/4EH3KG6XZQ4IYTFP42P4Y73AFJ \
  | 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: e10fb51bd7cc388c4cafe69fcc7f602a55526686350a5cae038ddb8e2afdfaea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ad74e5fe889c3bb36ca3f62d38c3d60bcc89c6ac9902d85bf66bf8aed03c5fd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-06-19T02:55:51Z",
    "title_canon_sha256": "a110d7abca0f81e91eccd85cd629ea8ec024f3b55dd44bba9fc47437b2ebff11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4115",
    "kind": "arxiv",
    "version": 1
  }
}