Pith Number

pith:2VDUHY2R

pith:2009:2VDUHY2R6UOEZVWACPRZPV2VUH

not attested not anchored not stored refs pending

The Discovery of Binary White Dwarfs that will Merge within 500 Myr

Carlos Allende Prieto, J. A. Panei, Mukremin Kilic, S. J. Kenyon, Warren R. Brown

arxiv:0911.1781 v2 · 2009-11-09 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2VDUHY2R6UOEZVWACPRZPV2VUH}

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	2026-05-18T02:34:11.492224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d54743e351f51c4cd6c013e397d755a1e4ae21f51300c59bf3534da3d243c856

Aliases

arxiv: 0911.1781 · arxiv_version: 0911.1781v2 · doi: 10.48550/arxiv.0911.1781 · pith_short_12: 2VDUHY2R6UOE · pith_short_16: 2VDUHY2R6UOEZVWA · pith_short_8: 2VDUHY2R

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/2VDUHY2R6UOEZVWACPRZPV2VUH \
  | 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: d54743e351f51c4cd6c013e397d755a1e4ae21f51300c59bf3534da3d243c856

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "898e24e255ad00cf29e2910eda5806945f0155cf09f342b745f3f3d4329c0520",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-09T21:16:27Z",
    "title_canon_sha256": "5c87eecf5b3e203ab2fd9345d10c81806a6c7162ae5fcd4f83bc8963fcd8e35d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1781",
    "kind": "arxiv",
    "version": 2
  }
}