Pith Number

pith:KTP3XMXO

pith:1998:KTP3XMXOELYB6UTJ3PJNNXOKEC

not attested not anchored not stored refs pending

The Shape of Pulsar Polar Caps

J. A. Eilek, Jr., P. N. Arendt

arxiv:astro-ph/9801257 v1 · 1998-01-27 · 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{KTP3XMXOELYB6UTJ3PJNNXOKEC}

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	2026-05-18T03:47:42.625849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54dfbbb2ee22f01f5269dbd2d6ddca20a383b959d3773de0448e5404201ce095

Aliases

arxiv: astro-ph/9801257 · arxiv_version: astro-ph/9801257v1 · doi: 10.48550/arxiv.astro-ph/9801257 · pith_short_12: KTP3XMXOELYB · pith_short_16: KTP3XMXOELYB6UTJ · pith_short_8: KTP3XMXO

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/KTP3XMXOELYB6UTJ3PJNNXOKEC \
  | 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: 54dfbbb2ee22f01f5269dbd2d6ddca20a383b959d3773de0448e5404201ce095

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06fa3340b93ef5e38a7c09554c6137439d7a562aa2922fb4a65c5354ad5078ca",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-27T01:33:13Z",
    "title_canon_sha256": "5553fd05efca38435d2bbe929b0c7c4c0a36a8a6747db185c03aaadc7cc4dfbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801257",
    "kind": "arxiv",
    "version": 1
  }
}