Pith Number

pith:PNMAPNBI

pith:2021:PNMAPNBI75NCKCVV72LGHQWGI6

not attested not anchored not stored refs pending

The First Dynamical Mass Determination of a Nitrogen-rich Wolf-Rayet Star using a Combined Visual and Spectroscopic Orbit

Andreas A. C. Sander, Andrew G. Fullard, Benjamin R. Setterholm, Claire L Davies, Cyprien Lanthermann, Gail Schaefer, Grant M. Hill, John D. Monnier, Laura Lee, Narsireddy Anugu, Noel D. Richardson, Stefan Kraus, Tomer Shenar, Tyler Gardner

arxiv:2101.04232 v1 · 2021-01-11 · 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{PNMAPNBI75NCKCVV72LGHQWGI6}

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	2026-07-05T02:15:40.264431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b5807b428ff5a250ab5fe9663c2c647beaad7316d9b5e54c9994e372eb6e04e

Aliases

arxiv: 2101.04232 · arxiv_version: 2101.04232v1 · doi: 10.48550/arxiv.2101.04232 · pith_short_12: PNMAPNBI75NC · pith_short_16: PNMAPNBI75NCKCVV · pith_short_8: PNMAPNBI

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/PNMAPNBI75NCKCVV72LGHQWGI6 \
  | 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: 7b5807b428ff5a250ab5fe9663c2c647beaad7316d9b5e54c9994e372eb6e04e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f328b1393efc49a0d71d0e46f93b0491a2cad84ceceb1032cb808e7b420eda0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-01-11T23:18:44Z",
    "title_canon_sha256": "5ea4d9480b7db10d064a22bd6e08c176f347e6d20920599fd98fed9e8dd0a629"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.04232",
    "kind": "arxiv",
    "version": 1
  }
}