Pith Number

pith:3EVMW36Y

pith:2003:3EVMW36YE2C6D5S6WQ2ZUTMHUP

not attested not anchored not stored refs pending

Physical interpretation of the UV/X-ray variability behavior of NGC 7469

Como, France), Grenoble, Italy), Italy) F. Haardt (Univ. dell'Insubria, K. Nandra (Imperial College, L. Maraschi (OAB, London, Milano, P.O. Petrucci (LAOG, UK)

arxiv:astro-ph/0309718 v1 · 2003-09-26 · 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{3EVMW36YE2C6D5S6WQ2ZUTMHUP}

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	2026-07-04T15:20:12.346030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d92acb6fd82685e1f65eb4359a4d87a3e33b8f9d8ac62bf480d4251d542cc517

Aliases

arxiv: astro-ph/0309718 · arxiv_version: astro-ph/0309718v1 · doi: 10.48550/arxiv.astro-ph/0309718 · pith_short_12: 3EVMW36YE2C6 · pith_short_16: 3EVMW36YE2C6D5S6 · pith_short_8: 3EVMW36Y

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/3EVMW36YE2C6D5S6WQ2ZUTMHUP \
  | 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: d92acb6fd82685e1f65eb4359a4d87a3e33b8f9d8ac62bf480d4251d542cc517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a0fa26c1271db52f9676ac51c2ee16a2fae14578db35a4c74c42fc7a7218e51",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-26T05:22:23Z",
    "title_canon_sha256": "bc58ab322b5714db2bdff4d7e284d2dc74efcba1f86780c44236016113f2fce2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309718",
    "kind": "arxiv",
    "version": 1
  }
}