Pith Number

pith:43MKLDML

pith:2013:43MKLDMLWD4CJH2KPV2OWEBQK3

not attested not anchored not stored refs pending

Discovery of an ultramassive pulsating white dwarf

A. Gianninas, Barbara G. Castanheira, D. E. Winget, J. J. Hermes, M. H. Montgomery, Samuel T. Harrold, S. O. Kepler, Warren R. Brown

arxiv:1306.4024 v1 · 2013-06-17 · 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{43MKLDMLWD4CJH2KPV2OWEBQK3}

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	2026-05-18T01:49:15.919687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6d8a58d8bb0f8249f4a7d74eb103056ce25961159cf6e052e08100a02ee7c45

Aliases

arxiv: 1306.4024 · arxiv_version: 1306.4024v1 · doi: 10.48550/arxiv.1306.4024 · pith_short_12: 43MKLDMLWD4C · pith_short_16: 43MKLDMLWD4CJH2K · pith_short_8: 43MKLDML

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/43MKLDMLWD4CJH2KPV2OWEBQK3 \
  | 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: e6d8a58d8bb0f8249f4a7d74eb103056ce25961159cf6e052e08100a02ee7c45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2007b8204094837ec78bdb1414cbb8850f91e216c6ad2d60b3df1684580027e0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-17T21:23:47Z",
    "title_canon_sha256": "52872e307448c288a37feba41144db05c392dcb7e75645bd819aca3afe8f7239"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4024",
    "kind": "arxiv",
    "version": 1
  }
}