Pith Number

pith:2OJYXJAO

pith:2010:2OJYXJAOG2JLTU2D24YSEO7MEH

not attested not anchored not stored refs pending

The optical light curve of the LMC pulsar B0540-69 in 2009

A. Possenti, C. Barbieri, C. German\`a, E. Verroi, G. Naletto, L. Zampieri, M. Barbieri, P. Zoccarato, S. Gradari, T. Occhipinti

arxiv:1012.0738 v1 · 2010-12-03 · astro-ph.HE · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OJYXJAOG2JLTU2D24YSEO7MEH}

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	2026-05-18T02:04:35.408260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3938ba40e3692b9d343d731223bec21cb900e64ec91722cf8649ae0c31d31d3

Aliases

arxiv: 1012.0738 · arxiv_version: 1012.0738v1 · doi: 10.48550/arxiv.1012.0738 · pith_short_12: 2OJYXJAOG2JL · pith_short_16: 2OJYXJAOG2JLTU2D · pith_short_8: 2OJYXJAO

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/2OJYXJAOG2JLTU2D24YSEO7MEH \
  | 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: d3938ba40e3692b9d343d731223bec21cb900e64ec91722cf8649ae0c31d31d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f29d96025d123c9a396fe6d2f8f9ae80c27a9222063254111d0a95633a8beec",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-12-03T13:38:39Z",
    "title_canon_sha256": "48763a74985f32b92e77f1ff18fbfab3ed4d45ac194c0ac927586f881dd08c2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0738",
    "kind": "arxiv",
    "version": 1
  }
}