Pith Number

pith:FV5MC5JF

pith:2003:FV5MC5JF35JXQTV5VW4IXISQOL

not attested not anchored not stored refs pending

Hard X-ray timing and spectral properties of PSR B0540-69

2), (2) Astronomical Institute, J. de Plaa (1, L. Kuiper (1), the Netherlands), The Netherlands, Utrecht University, W. Hermsen (1) ((1) SRON National Institute for Space Research

arxiv:astro-ph/0301195 v1 · 2003-01-12 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FV5MC5JF35JXQTV5VW4IXISQOL}

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	2026-05-18T04:21:42.232069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d7ac17525df53784ebdadb88ba25072f5f9384c2c8e9c2eff7a4d851c6e1c03

Aliases

arxiv: astro-ph/0301195 · arxiv_version: astro-ph/0301195v1 · doi: 10.48550/arxiv.astro-ph/0301195 · pith_short_12: FV5MC5JF35JX · pith_short_16: FV5MC5JF35JXQTV5 · pith_short_8: FV5MC5JF

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/FV5MC5JF35JXQTV5VW4IXISQOL \
  | 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: 2d7ac17525df53784ebdadb88ba25072f5f9384c2c8e9c2eff7a4d851c6e1c03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55f66ecf4a8eb84a8e703274c1b6b60903a5e6c31970088f1f500df5895abd3f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-12T16:43:19Z",
    "title_canon_sha256": "ba485299a4920bea1049f04260a09a578956154f5e4a5cd6f1870bd5d73ff0fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301195",
    "kind": "arxiv",
    "version": 1
  }
}