Pith Number

pith:YPK6RLHV

pith:2001:YPK6RLHVPHG7S7QMBT24QR34ER

not attested not anchored not stored refs pending

Hiccups in the night: X-ray monitoring of the two Crab-like LMC pulsars

E. V. Gotthelf (Columbia), F. E. Marshall (LHEA/GSFC), J. Middleditch (LANL), Q. D. Wang (Univ. of Mass), W. Zhang

arxiv:astro-ph/0112021 v1 · 2001-12-02 · 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{YPK6RLHVPHG7S7QMBT24QR34ER}

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	2026-07-04T14:11:40.904869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3d5e8acf579cdf97e0c0cf5c8477c2474ae074e3e9d289167b33321d0f3bb1b

Aliases

arxiv: astro-ph/0112021 · arxiv_version: astro-ph/0112021v1 · doi: 10.48550/arxiv.astro-ph/0112021 · pith_short_12: YPK6RLHVPHG7 · pith_short_16: YPK6RLHVPHG7S7QM · pith_short_8: YPK6RLHV

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/YPK6RLHVPHG7S7QMBT24QR34ER \
  | 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: c3d5e8acf579cdf97e0c0cf5c8477c2474ae074e3e9d289167b33321d0f3bb1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c239ec23c19296646deec781ec1bb5ea4839c4f561520e54473a9bd4045db00",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-02T20:13:44Z",
    "title_canon_sha256": "f8b2cc8619874ce454d889463fb83fe41fe26fd6d3dcd046709690d366fab41d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112021",
    "kind": "arxiv",
    "version": 1
  }
}