Pith Number

pith:EJN4W33B

pith:2011:EJN4W33BHWX73L5BRCAQDRQBNT

not attested not anchored not stored refs pending

The Binary Fraction of Low Mass White Dwarfs

Justin M. Brown (1), Marshall College (2) Smithsonian Astrophysical Observatory), Mukremin Kilic (2), Scott J. Kenyon (3) ((1) Franklin, Warren R. Brown (2)

arxiv:1101.5169 v1 · 2011-01-26 · astro-ph.GA · 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{EJN4W33BHWX73L5BRCAQDRQBNT}

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	2026-05-18T02:03:21.632661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

225bcb6f613daffdafa1888101c6016cd9ee226fcdd69d3968e0f6a6f3b30b84

Aliases

arxiv: 1101.5169 · arxiv_version: 1101.5169v1 · doi: 10.48550/arxiv.1101.5169 · pith_short_12: EJN4W33BHWX7 · pith_short_16: EJN4W33BHWX73L5B · pith_short_8: EJN4W33B

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/EJN4W33BHWX73L5BRCAQDRQBNT \
  | 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: 225bcb6f613daffdafa1888101c6016cd9ee226fcdd69d3968e0f6a6f3b30b84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b02dfa8cebfb2ed38405c3d9e11d11eca56bb9e55ef221940d4c255fcce06c4",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-01-26T21:35:46Z",
    "title_canon_sha256": "1c7b5bd1290557a07e4e14b62962356b17c452fd04b68c119311bca6ec79bf11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5169",
    "kind": "arxiv",
    "version": 1
  }
}