Pith Number

pith:FK4BKR5G

pith:2019:FK4BKR5GI4HPXQ5A4GBKAXQKXD

not attested not anchored not stored refs pending

The Evolution of Helium Star Plus Carbon-Oxygen White Dwarf Binary Systems and Implications for Diverse Stellar Transients and Hypervelocity Stars

N. Langer, P. Neunteufel, S.-C. Yoon

arxiv:1904.12421 v1 · 2019-04-29 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FK4BKR5GI4HPXQ5A4GBKAXQKXD}

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	2026-05-17T23:42:19.543379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ab81547a6470efbc3a0e182a05e0ab8cb165d6c65a6ea903f85a1c4397eb8d9

Aliases

arxiv: 1904.12421 · arxiv_version: 1904.12421v1 · doi: 10.48550/arxiv.1904.12421 · pith_short_12: FK4BKR5GI4HP · pith_short_16: FK4BKR5GI4HPXQ5A · pith_short_8: FK4BKR5G

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/FK4BKR5GI4HPXQ5A4GBKAXQKXD \
  | 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: 2ab81547a6470efbc3a0e182a05e0ab8cb165d6c65a6ea903f85a1c4397eb8d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fce9f3c42c22c671b5ab7d2b0909dfb9c88c598b8fdf521216bc5bd0378d75e9",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-29T02:13:40Z",
    "title_canon_sha256": "411198f5a89e507453f040f2ac35742577cb3db99e6520cd9f813e7256187022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12421",
    "kind": "arxiv",
    "version": 1
  }
}