Pith Number

pith:I6KPI4JB

pith:2022:I6KPI4JB3SHQN7FXFT5WWIJUAL

not attested not anchored not stored refs pending

An X-ray quiet black hole born with a negligible kick in a massive binary within the Large Magellanic Cloud

Alex de Koter, Andrzej Udalski, Annachiara Picco, Anthony F. J. Moffat, Artemio Herrero, Calum Hawcroft, Daniel J. Lennon, Dorota M. Skowron, Fabian R. N. Schneider, Hugues Sana, Igor Soszynski, Jan Skowron, Jesus Ma{\i}z Apellaniz, Jorick S. Vink, Julia Bodensteiner, Kareem El-Badry, Koushik Sen, Krzysztof Rybicki, Krzysztof Ulaczyk, Laurent Mahy, Leonardo A. Almeida, Marcin Wrona, Mariusz Gromadzki, Mark Gieles, Matthias Fabry, Michael Abdul-Masih, Micha{\l} K. Szymanski, Norbert Langer, Pablo Marchant, Patryk Iwanek, Paul A. Crowther, Pawe{\l} Pietrukowicz, Przemys{\l}aw Mroz, Rados{\l}aw Poleski, Silvia Toonen, Szymon Koz{\l}owski, Tomer Shenar, Vincent Henault-Brunet

arxiv:2207.07675 v1 · 2022-07-15 · astro-ph.HE · astro-ph.GA · 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{I6KPI4JB3SHQN7FXFT5WWIJUAL}

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	2026-07-05T04:40:35.646306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4794f47121dc8f06fcb72cfb6b213402ea9d94021fdc7d3e395e6fc7f7e79cef

Aliases

arxiv: 2207.07675 · arxiv_version: 2207.07675v1 · doi: 10.48550/arxiv.2207.07675 · pith_short_12: I6KPI4JB3SHQ · pith_short_16: I6KPI4JB3SHQN7FX · pith_short_8: I6KPI4JB

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/I6KPI4JB3SHQN7FXFT5WWIJUAL \
  | 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: 4794f47121dc8f06fcb72cfb6b213402ea9d94021fdc7d3e395e6fc7f7e79cef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e69a389d813e83ead439378633517faca4fc7033013b7e48efe208d369a2c9e",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-07-15T18:00:09Z",
    "title_canon_sha256": "c1c2670193300278846096dce498a4b5aceb2fcb11bf3ab527117b506074ab20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.07675",
    "kind": "arxiv",
    "version": 1
  }
}