Pith Number

pith:FZXYRIHC

pith:2013:FZXYRIHC6S7SOBSLOJQZP54HUS

not attested not anchored not stored refs pending

Mass/Radius Constraints on the Quiescent Neutron Star in M13 Using Hydrogen and Helium Atmospheres

Andrei Catuneanu, Craig O. Heinke, Gregory R. Sivakoff, Mathieu Servillat, Wynn C. G. Ho

arxiv:1301.3768 v1 · 2013-01-16 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZXYRIHC6S7SOBSLOJQZP54HUS}

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	2026-05-18T01:52:06.564114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e6f88a0e2f4bf27064b726197f787a4a3e5af0fa53ebea3ad01d54879394854

Aliases

arxiv: 1301.3768 · arxiv_version: 1301.3768v1 · doi: 10.48550/arxiv.1301.3768 · pith_short_12: FZXYRIHC6S7S · pith_short_16: FZXYRIHC6S7SOBSL · pith_short_8: FZXYRIHC

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/FZXYRIHC6S7SOBSLOJQZP54HUS \
  | 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: 2e6f88a0e2f4bf27064b726197f787a4a3e5af0fa53ebea3ad01d54879394854

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f142641381959d5ca514e4dc113eb3dd1184e952ca5198ffed217f25b0ab13f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-01-16T17:58:26Z",
    "title_canon_sha256": "0f73e19eb6cfdf13c109e701e367dcaf4ea3a499e350da91fc87f2f1cdf9f53d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3768",
    "kind": "arxiv",
    "version": 1
  }
}