Pith Number

pith:LUUOPEUO

pith:2009:LUUOPEUOMKZ46KWEPJLMNNKGET

not attested not anchored not stored refs pending

Twins: The Two Shortest Period Non-Interacting Double Degenerate White Dwarf Stars

Carles Badenes, F. Mullally, Robert Lupton, Susan E. Thompson

arxiv:0911.1798 v1 · 2009-11-09 · 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{LUUOPEUOMKZ46KWEPJLMNNKGET}

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	2026-05-18T02:34:11.475486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d28e7928e62b3cf2ac47a56c6b54624cf9d8e2164f9625ed09859c59920ac24

Aliases

arxiv: 0911.1798 · arxiv_version: 0911.1798v1 · doi: 10.48550/arxiv.0911.1798 · pith_short_12: LUUOPEUOMKZ4 · pith_short_16: LUUOPEUOMKZ46KWE · pith_short_8: LUUOPEUO

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/LUUOPEUOMKZ46KWEPJLMNNKGET \
  | 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: 5d28e7928e62b3cf2ac47a56c6b54624cf9d8e2164f9625ed09859c59920ac24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "251b9e0d8489dc4919f26fe9d3a095e6754e9f3bd6799eca339c69b99a32d7d2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-09T22:17:14Z",
    "title_canon_sha256": "d1fd0c02ab0469df6e9f7b1057cc660c7419b67f5a9a99761ad2b670abab8d40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1798",
    "kind": "arxiv",
    "version": 1
  }
}