Pith Number

pith:UEBWME5X

pith:2012:UEBWME5XRGHDQC3ADD5BCKYP2P

not attested not anchored not stored refs pending

On the Orbits of Low-mass Companions to White Dwarfs and the Fates of the Known Exoplanets

D. S. Spiegel, J. Nordhaus

arxiv:1211.1013 v4 · 2012-11-05 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UEBWME5XRGHDQC3ADD5BCKYP2P}

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	2026-05-18T01:53:25.580639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1036613b7898e380b6018fa112b0fd3ffa9936f9f483bcbbf3d3c472176c187

Aliases

arxiv: 1211.1013 · arxiv_version: 1211.1013v4 · doi: 10.48550/arxiv.1211.1013 · pith_short_12: UEBWME5XRGHD · pith_short_16: UEBWME5XRGHDQC3A · pith_short_8: UEBWME5X

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/UEBWME5XRGHDQC3ADD5BCKYP2P \
  | 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: a1036613b7898e380b6018fa112b0fd3ffa9936f9f483bcbbf3d3c472176c187

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df58072cb838c7e602d19ec2e6cebd0440babe66b97f2d1d765ef5375701eb67",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-05T21:00:01Z",
    "title_canon_sha256": "8db710577513ed072a5e8a9f0f79c58952df3ef34e7373f210dc4112cf50ac16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1013",
    "kind": "arxiv",
    "version": 4
  }
}