Pith Number

pith:LLLB4DHG

pith:1999:LLLB4DHGDA7JCYTTRU4I42SAJA

not attested not anchored not stored refs pending

Neutron stars in X-ray pulsars and their magnetic fields

S.B. Popov, V.M. Lipunov (Sternberg Astronomical Institute)

arxiv:astro-ph/9912545 v1 · 1999-12-29 · 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{LLLB4DHGDA7JCYTTRU4I42SAJA}

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	2026-05-18T01:07:35.662727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19

Aliases

arxiv: astro-ph/9912545 · arxiv_version: astro-ph/9912545v1 · doi: 10.48550/arxiv.astro-ph/9912545 · pith_short_12: LLLB4DHGDA7J · pith_short_16: LLLB4DHGDA7JCYTT · pith_short_8: LLLB4DHG

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/LLLB4DHGDA7JCYTTRU4I42SAJA \
  | 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: 5ad61e0ce6183e9162738d388e6a404803c3ab7b409426fb106cc6e11ee38b19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f131fae3dd3b0ddb56420fe3607584193fb672760ae7f155aea2c5ca15a470d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-29T17:06:35Z",
    "title_canon_sha256": "75f5db75791fac7729f954f137ad530cfabc8ecebb5059d8a013b5ab5f524e59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912545",
    "kind": "arxiv",
    "version": 1
  }
}