Pith Number

pith:XXDQFWSN

pith:2001:XXDQFWSNYBRTYJAFVEN3WH52IB

not attested not anchored not stored refs pending

The BeppoSAX view of the X-ray active nucleus of NGC4258

A. Comastri, A. Siemiginowska, B. Wilkes, E. Giallongo, F. Fiore, G. Matt, G. Trinchieri, L.A. Antonelli, R. Della Ceca, S. Mathur, S. Molendi, S. Pellegrini

arxiv:astro-ph/0102438 v1 · 2001-02-26 · 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{XXDQFWSNYBRTYJAFVEN3WH52IB}

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	2026-07-04T16:22:46.981048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdc702da4dc0633c2405a91bbb1fba40410b8691f98330c9ea3eb203f9bacfd8

Aliases

arxiv: astro-ph/0102438 · arxiv_version: astro-ph/0102438v1 · doi: 10.48550/arxiv.astro-ph/0102438 · pith_short_12: XXDQFWSNYBRT · pith_short_16: XXDQFWSNYBRTYJAF · pith_short_8: XXDQFWSN

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/XXDQFWSNYBRTYJAFVEN3WH52IB \
  | 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: bdc702da4dc0633c2405a91bbb1fba40410b8691f98330c9ea3eb203f9bacfd8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56cdfc009ee512511d50b3f06ad5776da00fa8a464d015ede2412489dba378c8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-26T09:05:44Z",
    "title_canon_sha256": "5d131af7678469a32080047c8395ed50fba05baa68bb3b8353b9a8a98205d41b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102438",
    "kind": "arxiv",
    "version": 1
  }
}