Pith Number

pith:LUXC7HMP

pith:2012:LUXC7HMP5FOQBUZI6CRFN2X24F

not attested not anchored not stored refs pending

Effective electron recombination coefficient in ionospheric D-region during the relaxation regime after solar flare from February 18, 2011

A. Nina, D. Sulic, V. Cadez, V. Sreckovic, V. Zigman

arxiv:1204.4309 v1 · 2012-04-19 · astro-ph.EP · physics.geo-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{LUXC7HMP5FOQBUZI6CRFN2X24F}

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	2026-05-18T03:57:27.824489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d2e2f9d8fe95d00d328f0a256eafae1437fcf2ba85ce2d7fe24f1bb6640d9ee

Aliases

arxiv: 1204.4309 · arxiv_version: 1204.4309v1 · doi: 10.48550/arxiv.1204.4309 · pith_short_12: LUXC7HMP5FOQ · pith_short_16: LUXC7HMP5FOQBUZI · pith_short_8: LUXC7HMP

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/LUXC7HMP5FOQBUZI6CRFN2X24F \
  | 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: 5d2e2f9d8fe95d00d328f0a256eafae1437fcf2ba85ce2d7fe24f1bb6640d9ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22b5107dada277c36bc9add94c709a5c4c1df6e9bb649161c1fd397b313d8db6",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-04-19T11:07:11Z",
    "title_canon_sha256": "73cb5b0696774eebedc23409d540ffa0638ee4032116fea39d672a941bd9a341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4309",
    "kind": "arxiv",
    "version": 1
  }
}