Pith Number

pith:OWEMP7WR

pith:1999:OWEMP7WRO2YLW5G56QI7CH526O

not attested not anchored not stored refs pending

A Massive White Dwarf Companion to the Eccentric Binary Pulsar System PSR B2303+46

M. H. van Kerkwijk (Utrecht Univ.), S. R. Kulkarni (Caltech)

arxiv:astro-ph/9901149 v2 · 1999-01-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWEMP7WRO2YLW5G56QI7CH526O}

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.

Cited by

1 paper in Pith

Discovering $\mu$Hz gravitational waves and ultra-light dark matter with binary resonances

Receipt and verification

First computed	2026-07-04T16:10:36.604111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7588c7fed176b0bb74ddf411f11fbaf3a52816f8eb10061ff6f15f9297e36206

Aliases

arxiv: astro-ph/9901149 · arxiv_version: astro-ph/9901149v2 · doi: 10.48550/arxiv.astro-ph/9901149 · pith_short_12: OWEMP7WRO2YL · pith_short_16: OWEMP7WRO2YLW5G5 · pith_short_8: OWEMP7WR

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/OWEMP7WRO2YLW5G56QI7CH526O \
  | 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: 7588c7fed176b0bb74ddf411f11fbaf3a52816f8eb10061ff6f15f9297e36206

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b9455e015941b8c98b904eaf79d525a86130d8cf090e5175b3810ab1cd2fb50",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-12T16:47:10Z",
    "title_canon_sha256": "a38a59c7851dcb6e5a4119128361c9ecf35fee0321d626a3f6d08d5ffbb6d6a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901149",
    "kind": "arxiv",
    "version": 2
  }
}