Pith Number

pith:IBNCPR44

pith:2002:IBNCPR44EHOUMY7VXW6XKGVKX2

not attested not anchored not stored refs pending

Photospheric radius expansion X-ray bursts as standard candles

2), (2) Utrecht University, (3) McMaster University, (4) Istituto di Astrofisica Spaziale e Fisica Cosmica), E. Kuulkers (1, F.W.M. Verbunt (2), J.J.M. in 't Zand (1), M. Cocchi (4) ((1) SRON National Institute for Space Research, P.R. den Hartog (1, W.E. Harris (3)

arxiv:astro-ph/0212028 v2 · 2002-12-02 · 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{IBNCPR44EHOUMY7VXW6XKGVKX2}

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.

Cited by

3 papers in Pith

Tracing the outburst decay of soft X-ray transients Aql X-1 and 4U 1608-52 with XSPECT

The first IXPE view of the eclipsing ADC source 4U 1822-37

The compact neutron star in 4U 1746-37 revisited: Reassessing the mass and radius

Receipt and verification

First computed	2026-05-18T04:23:01.065892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

405a27c79c21dd4663f5bdbd751aaabe9c21376e8eb8445083b889e5d80f8239

Aliases

arxiv: astro-ph/0212028 · arxiv_version: astro-ph/0212028v2 · doi: 10.48550/arxiv.astro-ph/0212028 · pith_short_12: IBNCPR44EHOU · pith_short_16: IBNCPR44EHOUMY7V · pith_short_8: IBNCPR44

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/IBNCPR44EHOUMY7VXW6XKGVKX2 \
  | 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: 405a27c79c21dd4663f5bdbd751aaabe9c21376e8eb8445083b889e5d80f8239

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bd92d51658842eb0953313f4a412746bc0a44aba61b6c44e69c649155e264b6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-02T12:54:20Z",
    "title_canon_sha256": "3d149192c56907903df009808dfcfd3631c6e7dab0d85f510270b0cd3d17a9ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212028",
    "kind": "arxiv",
    "version": 2
  }
}