Pith Number

pith:VFZX3GPT

pith:2011:VFZX3GPTVTYSPVJDQ3CTL4OUZZ

not attested not anchored not stored refs pending

Implications of the measured parameters of PSR J1903+0327 for its progenitor neutron star

J. L. Zdunik, M. Bejger, M. Fortin, P. Haensel

arxiv:1106.2432 v2 · 2011-06-13 · 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{VFZX3GPTVTYSPVJDQ3CTL4OUZZ}

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	2026-05-18T04:06:33.114087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9737d99f3acf127d52386c535f1d4ce6d0378f12c963deaa7f79ffc026f5ac0

Aliases

arxiv: 1106.2432 · arxiv_version: 1106.2432v2 · doi: 10.48550/arxiv.1106.2432 · pith_short_12: VFZX3GPTVTYS · pith_short_16: VFZX3GPTVTYSPVJD · pith_short_8: VFZX3GPT

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/VFZX3GPTVTYSPVJDQ3CTL4OUZZ \
  | 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: a9737d99f3acf127d52386c535f1d4ce6d0378f12c963deaa7f79ffc026f5ac0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "447450ee67e80d989533f4f8dab878bebc61ff8df1c093fc67e701a81f919c40",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-06-13T12:56:19Z",
    "title_canon_sha256": "d6492cc5cdba03e3c7914520c030fa15843e57ec3aac81c83d9e98ac5bd84390"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2432",
    "kind": "arxiv",
    "version": 2
  }
}