Pith Number

pith:TDJ52WHV

pith:2019:TDJ52WHVJFRZG2JTAL27NEJDWI

not attested not anchored not stored refs pending

X-ray binaries as the origin of nebular HeII emission in low-metallicity star-forming galaxies

2), (2) CNRS, (3) Bogolyubov Institute for Theoretical Physics, D. Schaerer (1, Kiev), T. Fragos (2), Y. Izotov (3) ((1) University of Geneva

arxiv:1902.10496 v1 · 2019-02-27 · 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{TDJ52WHVJFRZG2JTAL27NEJDWI}

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	2026-05-17T23:52:30.729845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98d3dd58f5496393693302f5f69123b23fd67e4e389161cee138284d8ba6f706

Aliases

arxiv: 1902.10496 · arxiv_version: 1902.10496v1 · doi: 10.48550/arxiv.1902.10496 · pith_short_12: TDJ52WHVJFRZ · pith_short_16: TDJ52WHVJFRZG2JT · pith_short_8: TDJ52WHV

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/TDJ52WHVJFRZG2JTAL27NEJDWI \
  | 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: 98d3dd58f5496393693302f5f69123b23fd67e4e389161cee138284d8ba6f706

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6b6674ea601eb29e26a946b17bb856a4087fa5fea426889b5d511149e29b60f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-27T12:54:14Z",
    "title_canon_sha256": "658bfe1eaa24881aa371f386444d04376fc18afd532dd054e6fd237a3c794a1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10496",
    "kind": "arxiv",
    "version": 1
  }
}