Pith Number

pith:MSUPJXG3

pith:2013:MSUPJXG3K5A22NNQNIKVUP2XSH

not attested not anchored not stored refs pending

On the black hole from merging binary neutron stars: how fast can it spin?

Daniela Alic, Filippo Galeazzi, Jose A. Font, Luciano Rezzolla, Wolfgang Kastaun

arxiv:1301.7348 v2 · 2013-01-30 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MSUPJXG3K5A22NNQNIKVUP2XSH}

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	2026-05-18T03:10:47.876942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64a8f4dcdb5741ad35b06a155a3f5791d793a8ad0224ed2498226ad05c9f795e

Aliases

arxiv: 1301.7348 · arxiv_version: 1301.7348v2 · doi: 10.48550/arxiv.1301.7348 · pith_short_12: MSUPJXG3K5A2 · pith_short_16: MSUPJXG3K5A22NNQ · pith_short_8: MSUPJXG3

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/MSUPJXG3K5A22NNQNIKVUP2XSH \
  | 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: 64a8f4dcdb5741ad35b06a155a3f5791d793a8ad0224ed2498226ad05c9f795e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf47bce7e50e25155ee03c1a3d3a64a4926e4835b1513072764062ffa6e62856",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-01-30T20:17:58Z",
    "title_canon_sha256": "ca756549ce8f46b11f1f806b0f4d0f53cef6fd53c755706d3c8fd66864a7eb18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7348",
    "kind": "arxiv",
    "version": 2
  }
}