Pith Number

pith:NQPYRTUZ

pith:2022:NQPYRTUZJVEN7XDWOZDO3UJBR5

not attested not anchored not stored refs pending

On the Nature of Ultracool White Dwarfs: Not so Cool Afterall

A. B\'edard, Mukremin Kilic, P. Bergeron, Simon Blouin, S. K. Leggett, Warren R. Brown

arxiv:2206.03174 v1 · 2022-06-07 · 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{NQPYRTUZJVEN7XDWOZDO3UJBR5}

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.

Cited by

1 paper in Pith

White dwarfs within 13 pc: Insights from ultraviolet spectroscopy

Receipt and verification

First computed	2026-07-05T04:45:22.508440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c1f88ce994d48dfdc767646edd1218f7cae9dcb9119d0f75a5c74a3c1ab0f85

Aliases

arxiv: 2206.03174 · arxiv_version: 2206.03174v1 · doi: 10.48550/arxiv.2206.03174 · pith_short_12: NQPYRTUZJVEN · pith_short_16: NQPYRTUZJVEN7XDW · pith_short_8: NQPYRTUZ

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/NQPYRTUZJVEN7XDWOZDO3UJBR5 \
  | 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: 6c1f88ce994d48dfdc767646edd1218f7cae9dcb9119d0f75a5c74a3c1ab0f85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ef7c755b40af46a6a919174ab1953b8f14a68fb5bc575fed6bebbc720363fbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2022-06-07T10:55:39Z",
    "title_canon_sha256": "79fc4ef1a07e5052e883518f168276dcac0699721b6136bcf65d30585c94913b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.03174",
    "kind": "arxiv",
    "version": 1
  }
}