Pith Number

pith:PS23AAZF

pith:2010:PS23AAZFTXS7L3FZDAUQLBNGR5

not attested not anchored not stored refs pending

Ancient planetary systems are orbiting a large fraction of white dwarf stars

B. Klein, B. Zuckerman, C. Melis, D. Koester, M. Jura

arxiv:1007.2252 v1 · 2010-07-14 · 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{PS23AAZFTXS7L3FZDAUQLBNGR5}

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	2026-05-18T02:06:22.182716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb5b003259de5f5ecb918290585a68f44964bbbcb10b15e34695ed7f448acf1

Aliases

arxiv: 1007.2252 · arxiv_version: 1007.2252v1 · doi: 10.48550/arxiv.1007.2252 · pith_short_12: PS23AAZFTXS7 · pith_short_16: PS23AAZFTXS7L3FZ · pith_short_8: PS23AAZF

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/PS23AAZFTXS7L3FZDAUQLBNGR5 \
  | 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: 7cb5b003259de5f5ecb918290585a68f44964bbbcb10b15e34695ed7f448acf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "595a78277c5be50ab9122b57071617aec5acbc1ab2bb9b745f084b3f50192da0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-14T04:43:57Z",
    "title_canon_sha256": "cca10e57ad631a24e12e9a70d579f16bd819948a11f83de9edc6bbf4ff82201f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2252",
    "kind": "arxiv",
    "version": 1
  }
}