Pith Number

pith:VLMKWDL3

pith:2012:VLMKWDL3LDVL3QWIEX4SJH553K

not attested not anchored not stored refs pending

SDSS DR7 White Dwarf Catalog

A. C\'orsico, A. Nitta, Ching-Wa Yip, Daniel J. Eisenstein, D. Koester, F.-R. Lachapelle, Hugh C. Harris, Ingrid Pelisoli, J.E.S. Costa, J. Krzesinski, L. Althaus, P. Bergeron, P. Dufour, S.J. Kleinman, S.O. Kepler, Viviane Pe\c{c}anha

arxiv:1212.1222 v1 · 2012-12-06 · 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{VLMKWDL3LDVL3QWIEX4SJH553K}

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	2026-05-18T01:52:47.163798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aad8ab0d7b58eabdc2c825f9249fbddaa472d0b4b8c8ba8a1b300aa59c9442fa

Aliases

arxiv: 1212.1222 · arxiv_version: 1212.1222v1 · doi: 10.48550/arxiv.1212.1222 · pith_short_12: VLMKWDL3LDVL · pith_short_16: VLMKWDL3LDVL3QWI · pith_short_8: VLMKWDL3

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/VLMKWDL3LDVL3QWIEX4SJH553K \
  | 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: aad8ab0d7b58eabdc2c825f9249fbddaa472d0b4b8c8ba8a1b300aa59c9442fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddd8898338fcc09dea8562af42fc4315771385e6f8dd62e732ab4ffe72f7bcf7",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-12-06T02:37:04Z",
    "title_canon_sha256": "3c7944f550b74c30aea04c57bed64119040a7c2faef38d1b34df24a0b64999c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1222",
    "kind": "arxiv",
    "version": 1
  }
}