Pith Number

pith:YYFEDYN3

pith:2021:YYFEDYN3F3DGJ6MJ4TVKLOMOMQ

not attested not anchored not stored refs pending

The orbit and stellar masses of the archetype colliding-wind binary WR 140

10), (10) The Catholic University of America, (11) University of Birmingham, (12) Max Planck Institute for Radio Astronomy, (13) University of Exeter, 14), (14) University of Arizona, 15), (15) Institut de Planetologie et d'Astrophysique de Grenoble France, (16) Observatori Puig d'Agulles Barcelona, 17), (17) Georgia State University, (18) Schnorringen Telescope Science Institute Waldbrol Germany, (19) Observatoire de la Tourbi\'ere France, (20) Piera Barcelona Spain, (21) The Birches Torpenhow Wigton Cumbria, (22) Arnprior Canada (23) Ankara University, (24) Observatorio do Centro de Informacao Geoespacial do Exercito Lisboa Portugal, (25) VdS Section Spectroscopy Germany, (26) Giesen Lower Saxony Germany), (2) Embry-Riddle Aeronautical University, (3) University of Auckland, (4) Georgia State University, (5) University of Michigan, (6) Institute of Astrophysics KU Leuven, (7) Centre de Recherche en Astrophysique du Quebec, (8) University of Edinburgh, (9) CRESST II & X-ray Astrophysics Laboratory, Aaron Labdon (13), Andrew Couperus (1, Anthony F. J. Moffat (7), Benjamin Setterholm (5), Berthold Stober (25), Bonn, Brendan McBride (1), Claire L. Davies (13), Courtney Maki (1), Cyprien Lanthermann (6, Dogus Ozuyar (23), Farrah D. Zainol (11), Fran Campos (16), Gail H. Schaefer (4), Gerd Weigelt (12), Hugues Sana (6), Ian R. Stevens (11), Jacob Ennis (5), Jean-Baptiste Le Bouquin (15), J. J. Eldridge (3), Joan Guarro Fl\'o (20), John D. Monnier (5), Joshua D. Thomas (1), J. Ribeiro (24), Mackenna Wood (1), Michael F. Corcoran (9, Narsireddy Anugu (13, Noel D. Richardson (2), Oliver Garde (19), Peredur Williams (8), Robin Leadbeater (21), Stefan Kraus (13), Theo ten Brummelaar (4), Thomas Eversberg (18), T. Lester (22), Tyler Gardner (5), Uwe Zurm\"uhl (26) ((1) Clarkson University

arxiv:2101.10563 v2 · 2021-01-26 · 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{YYFEDYN3F3DGJ6MJ4TVKLOMOMQ}

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	2026-07-05T02:39:13.171770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c60a41e1bb2ec664f989e4eaa5b98e641acab535abff482be9dcf669f0de3ce2

Aliases

arxiv: 2101.10563 · arxiv_version: 2101.10563v2 · doi: 10.48550/arxiv.2101.10563 · pith_short_12: YYFEDYN3F3DG · pith_short_16: YYFEDYN3F3DGJ6MJ · pith_short_8: YYFEDYN3

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/YYFEDYN3F3DGJ6MJ4TVKLOMOMQ \
  | 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: c60a41e1bb2ec664f989e4eaa5b98e641acab535abff482be9dcf669f0de3ce2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ae479319204df6bfa96a971762ac7a54b78603757a4181aec2c7f48ae6de242",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-01-26T05:18:56Z",
    "title_canon_sha256": "55ac4df3cd3be0347bf9a2537b748d3fce60119f6a89e4b1002409426f2ba9d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.10563",
    "kind": "arxiv",
    "version": 2
  }
}