Pith Number

pith:4UFWBTOM

pith:2019:4UFWBTOMLGBVYEBVKZKPXJHDDJ

not attested not anchored not stored refs pending

Supersoft X-ray emission from a white dwarf binary not powered by nuclear fusion

Andry Rajoelimanana (University of the Free State), Andrzej Udalski, Christopher T. Britt (Michigan State), David A. H. Buckley (SAAO), Igor Soszy\'nski (Warsaw), Jan Skowron (Warsaw), Jay Strader (Michigan State), Koji Mukai (NASA-GSFC), Krzysztof Ulaczyk (Warsaw, Laura Chomiuk (Michigan State), Michal K. Szyma\'nski, Ohio State), Pawe{\l} Pietrukowicz, Peter J. Brown (Texas A&M), Philip A. Charles (Southampton), Przemek Mr\'oz, Rados{\l}aw Poleski (Warsaw, Saurabh W. Jha (Rutgers), Szymon Koz{\l}owski, Thomas J. Maccarone (Texas Tech), Thomas J. Nelson (Pittsburgh), Warwick)

arxiv:1907.02130 v1 · 2019-07-03 · astro-ph.HE · 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{4UFWBTOMLGBVYEBVKZKPXJHDDJ}

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	2026-05-17T23:41:29.786180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e50b60cdcc59835c10355654fba4e31a61c32576777f4e5bc403ab5729e9ead1

Aliases

arxiv: 1907.02130 · arxiv_version: 1907.02130v1 · doi: 10.48550/arxiv.1907.02130 · pith_short_12: 4UFWBTOMLGBV · pith_short_16: 4UFWBTOMLGBVYEBV · pith_short_8: 4UFWBTOM

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/4UFWBTOMLGBVYEBVKZKPXJHDDJ \
  | 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: e50b60cdcc59835c10355654fba4e31a61c32576777f4e5bc403ab5729e9ead1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a68016a3377abe4aa6ec0e52a3210fb1f559eb450f28830a406f2a7ba2c11548",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-07-03T20:52:29Z",
    "title_canon_sha256": "1f27d158d3711e13535307789a2b1d4be234df8844bd7b64c914e565a9b1c419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02130",
    "kind": "arxiv",
    "version": 1
  }
}