Pith Number

pith:F2XFABRW

pith:2014:F2XFABRWU7WELTZCB43FWITJTB

not attested not anchored not stored refs pending

Empirical determination of Einstein A-coefficient ratios of bright [Fe II] lines

B. Nisini, B. Stelzer, D. Lorenzetti, F. Bacciotti, J. M. Alcala', L. Podio, R. Bonito, S. Antoniucci, T. Giannini

arxiv:1410.8304 v1 · 2014-10-30 · 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{F2XFABRWU7WELTZCB43FWITJTB}

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	2026-05-18T01:41:38.604488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2eae500636a7ec45cf220f365b226998461c6d95fd0ac59edf6a0676fba7736e

Aliases

arxiv: 1410.8304 · arxiv_version: 1410.8304v1 · doi: 10.48550/arxiv.1410.8304 · pith_short_12: F2XFABRWU7WE · pith_short_16: F2XFABRWU7WELTZC · pith_short_8: F2XFABRW

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/F2XFABRWU7WELTZCB43FWITJTB \
  | 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: 2eae500636a7ec45cf220f365b226998461c6d95fd0ac59edf6a0676fba7736e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dbe16a8224a899da099ddca767700dafb6362ac08a5fa33cda55f800d276da4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-10-30T10:09:13Z",
    "title_canon_sha256": "96a51f4c1e9b85ccffaf0071c310ea873804f95b822f5707a0a906f529a58b91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.8304",
    "kind": "arxiv",
    "version": 1
  }
}