Pith Number

pith:7BZ27DGE

pith:2011:7BZ27DGE3BLQDCDEYC52MHZVIL

not attested not anchored not stored refs pending

The meaning inferred from the spin period distribution of normal pulsars

Cheng-Min Zhang, Qiu-he Peng, Xin-Ji Wu, Ying-Chun Wei, Yong-Heng Zhao

arxiv:1103.3941 v1 · 2011-03-21 · 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{7BZ27DGE3BLQDCDEYC52MHZVIL}

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	2026-05-18T04:26:22.098119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f873af8cc4d857018864c0bba61f3542d6e08e4f054007c8ee69f8dfc0fbc698

Aliases

arxiv: 1103.3941 · arxiv_version: 1103.3941v1 · doi: 10.48550/arxiv.1103.3941 · pith_short_12: 7BZ27DGE3BLQ · pith_short_16: 7BZ27DGE3BLQDCDE · pith_short_8: 7BZ27DGE

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/7BZ27DGE3BLQDCDEYC52MHZVIL \
  | 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: f873af8cc4d857018864c0bba61f3542d6e08e4f054007c8ee69f8dfc0fbc698

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f31c46ce5c1cb2d6bce8a222ba9e9354675aa4bae0fe4090a87dd4fa99a4bd3d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-03-21T08:51:23Z",
    "title_canon_sha256": "1238368076f17e7083b4e40cd20005e3a63224d6992b35d49d1b1238fa68a2ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3941",
    "kind": "arxiv",
    "version": 1
  }
}