Pith Number

pith:FY7V4M2V

pith:2015:FY7V4M2VAXDXE4DHURHDUEHDH6

not attested not anchored not stored refs pending

The fine structure line deficit in S 140

Bhaswati Mookerjea, Evgenia Koumpia, Floris F.S. van der Tak, Patrick P\"utz, Robert Simon, Rolf G\"usten, Volker Ossenkopf, Yoko Okada

arxiv:1506.01991 v1 · 2015-06-05 · 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{FY7V4M2VAXDXE4DHURHDUEHDH6}

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	2026-05-18T01:35:29.893242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e3f5e335505c7727067a44e3a10e33f80f5017f7c60407a8a013b8e1bf0a87e

Aliases

arxiv: 1506.01991 · arxiv_version: 1506.01991v1 · doi: 10.48550/arxiv.1506.01991 · pith_short_12: FY7V4M2VAXDX · pith_short_16: FY7V4M2VAXDXE4DH · pith_short_8: FY7V4M2V

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/FY7V4M2VAXDXE4DHURHDUEHDH6 \
  | 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: 2e3f5e335505c7727067a44e3a10e33f80f5017f7c60407a8a013b8e1bf0a87e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54ce01fb90afc9d04bc0ecee584ff2f152ff5a0a6e1fd80b0c5ebb489bc5854b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-06-05T17:40:55Z",
    "title_canon_sha256": "624ce8c60682670fe997ee13c443849eff60787caad828ba27df588d655f6bd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01991",
    "kind": "arxiv",
    "version": 1
  }
}