Pith Number

pith:XFHHF3HE

pith:2003:XFHHF3HEC5TVAPLFNWIJCS67NM

not attested not anchored not stored refs pending

Extrinsic Radio Variability of JVAS/CLASS Gravitational Lenses

A. Biggs (JIVE/JBO), A.G. de Bruyn (ASTRON/KAI), I.W.A. Browne (JBO), J. Wambsganss (U. Potsdam), L.V.E. Koopmans (STScI/Caltech/JBO), N.J. Jackson (JBO), P.N. Wilkinson (JBO), R.D. Blandford (Caltech), S. Mao (JBO)

arxiv:astro-ph/0302189 v3 · 2003-02-11 · 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{XFHHF3HEC5TVAPLFNWIJCS67NM}

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	2026-07-04T16:36:28.983443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b94e72ece41767503d656d90914bdf6b20ae49edbb27d2d4019e41cc16f21d2d

Aliases

arxiv: astro-ph/0302189 · arxiv_version: astro-ph/0302189v3 · doi: 10.48550/arxiv.astro-ph/0302189 · pith_short_12: XFHHF3HEC5TV · pith_short_16: XFHHF3HEC5TVAPLF · pith_short_8: XFHHF3HE

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/XFHHF3HEC5TVAPLFNWIJCS67NM \
  | 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: b94e72ece41767503d656d90914bdf6b20ae49edbb27d2d4019e41cc16f21d2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb37e6613cc8737723fb33deec912e956b4acd52a3049799980e57a92f5ea4ae",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-02-11T19:43:15Z",
    "title_canon_sha256": "e86b53366dcef980b6052c2703390190b3af2f3f4cf5b48f66b3084f428cd544"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0302189",
    "kind": "arxiv",
    "version": 3
  }
}