Pith Number

pith:PCY3433V

pith:2001:PCY3433V4QX5CAMYKGPJWKIO7R

not attested not anchored not stored refs pending

Deep ROSAT-HRI observations of the NGC 1399/NGC 1404 region: morphology and structure of the X-ray halo

D.-W. Kim (2) ((1) Universita' di Palermo - D.S.F.A. - Sez.di Astronomia; (2) Harvard-Smithsonian Center for Astrophysics - High Energy Division - Cambridge, G. Fabbiano (2), G. Peres (1), MA), M. Paolillo (1)

arxiv:astro-ph/0109342 v1 · 2001-09-20 · 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{PCY3433V4QX5CAMYKGPJWKIO7R}

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	2026-07-04T16:24:09.058879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78b1be6f75e42fd10198519e9b290efc7a5720106c3273c67a70ef82996301f5

Aliases

arxiv: astro-ph/0109342 · arxiv_version: astro-ph/0109342v1 · doi: 10.48550/arxiv.astro-ph/0109342 · pith_short_12: PCY3433V4QX5 · pith_short_16: PCY3433V4QX5CAMY · pith_short_8: PCY3433V

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/PCY3433V4QX5CAMYKGPJWKIO7R \
  | 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: 78b1be6f75e42fd10198519e9b290efc7a5720106c3273c67a70ef82996301f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32029c62cc79ee1a485837a85f0b268aaf7fedd7466685b56b7ebbe6a8520595",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-20T14:22:48Z",
    "title_canon_sha256": "8505331d07821ecea7f75b478280c8b345fe7e1666ce014b11cd1df9086ed982"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109342",
    "kind": "arxiv",
    "version": 1
  }
}