Pith Number

pith:WEBRTP4Q

pith:2013:WEBRTP4QNXFAWZXFBPIKR4EXB7

not attested not anchored not stored refs pending

The double pulsar: evidence for neutron star formation without an iron core-collapse supernova

1), 2), (2) McGill University, (3) University of British Columbia, (4) Max Planck Institute for Radio Astronomy, (5) University of Southampton, (6) West Virginia University, 7), (7) National Radio Astronomy Observatory, (8) INAF - Osservatorio Astronomico di Cagliari, (9) CSIRO Astronomy, A. G. Lyne (1) ((1) University of Manchester, A. Possenti (8), Australia), Australia Telescope National Facility, Bonn, B. W. Stappers (1), Canada, Capoterra, Epping, Germany, Green Bank, I. H. Stairs (3), Italy, Jodrell Bank Centre for Astrophysics, M. A. McLaughlin (6, M. Kramer (4, Montreal, Morgantown, P. C. C. Freire (4), R. D. Ferdman (1, R. N. Manchester (9), R. P. Breton (5), Southampton, Space Science, United Kingdom, USA, Vancouver, V. M. Kaspi (2)

arxiv:1302.2914 v2 · 2013-02-12 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WEBRTP4QNXFAWZXFBPIKR4EXB7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:51:42.019214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b10319bf906dca0b66e50bd0a8f0970fc8c80204ca0799f71c62bf6ee15b475c

Aliases

arxiv: 1302.2914 · arxiv_version: 1302.2914v2 · doi: 10.48550/arxiv.1302.2914 · pith_short_12: WEBRTP4QNXFA · pith_short_16: WEBRTP4QNXFAWZXF · pith_short_8: WEBRTP4Q

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/WEBRTP4QNXFAWZXFBPIKR4EXB7 \
  | 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: b10319bf906dca0b66e50bd0a8f0970fc8c80204ca0799f71c62bf6ee15b475c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "895444c1046439c4e8a7566721cb6a82b419e9b783333cb005de25392b60fdd1",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-12T21:00:01Z",
    "title_canon_sha256": "62fcacb31247fbc47e7cdf2f62d83700327bb1b018e43e8070b29b6a8531fa49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2914",
    "kind": "arxiv",
    "version": 2
  }
}