Pith Number

pith:6ISG7WVV

pith:1997:6ISG7WVV2HCQ3KEUZAMS7OFQYL

not attested not anchored not stored refs pending

Anomalous cooling of the massive white dwarf in U Geminorum following a narrow dwarf nova outburst

Boris Gaensicke, Edward M. Sion, F.H. Cheng, Janet Mattei, Min Huang, Paula Szkody, Warren Sparks

arxiv:astro-ph/9710299 v1 · 1997-10-27 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6ISG7WVV2HCQ3KEUZAMS7OFQYL}

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	2026-07-04T16:03:19.666194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2246fdab5d1c50da894c8192fb8b0c2cf79d3a80ad823db6daaa37cdb17d8da

Aliases

arxiv: astro-ph/9710299 · arxiv_version: astro-ph/9710299v1 · doi: 10.48550/arxiv.astro-ph/9710299 · pith_short_12: 6ISG7WVV2HCQ · pith_short_16: 6ISG7WVV2HCQ3KEU · pith_short_8: 6ISG7WVV

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/6ISG7WVV2HCQ3KEUZAMS7OFQYL \
  | 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: f2246fdab5d1c50da894c8192fb8b0c2cf79d3a80ad823db6daaa37cdb17d8da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c380f904603dd07f97a9c016dad39dd67c7a30044c27f43d87cb51738083033",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-27T11:27:38Z",
    "title_canon_sha256": "4ce98eebccf32f0beddd01caf88ae078d16a5a09a229e3d969972b9a25ee82f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710299",
    "kind": "arxiv",
    "version": 1
  }
}