Pith Number

pith:SBEO6NAM

pith:2006:SBEO6NAMGCJYQIVC733SKKLZEE

not attested not anchored not stored refs pending

A longer XMM-Newton look at I Zwicky 1: Variability of the X-ray continuum, absorption, and iron Kalpha line

2), 5), A. C. Fabian (6), E. Costantini (4, I. E. Papadakis (7) ((1) MPE; (2) Univ. St Andrews; (3) PSU; (4) SRON; (5) Utrecht Univ; (6) IoA; (7) Univ. of Crete), K. Iwasawa (1), L. C. Gallo (1, W. N. Brandt (3)

arxiv:astro-ph/0610283 v2 · 2006-10-10 · 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{SBEO6NAMGCJYQIVC733SKKLZEE}

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	2026-07-04T15:16:56.155551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9048ef340c30938822a2fef725297921197819675b05aa405672141f94de2dd7

Aliases

arxiv: astro-ph/0610283 · arxiv_version: astro-ph/0610283v2 · doi: 10.48550/arxiv.astro-ph/0610283 · pith_short_12: SBEO6NAMGCJY · pith_short_16: SBEO6NAMGCJYQIVC · pith_short_8: SBEO6NAM

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/SBEO6NAMGCJYQIVC733SKKLZEE \
  | 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: 9048ef340c30938822a2fef725297921197819675b05aa405672141f94de2dd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e90e839fcd6a5f0879a99120352b300c23797b4eb444a23bc256ce891f428aa6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-10-10T12:37:09Z",
    "title_canon_sha256": "0b6b09c572948e9cab4da8f7a2e9f1419199bf1c35e6f0e0b2249601f590cd91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0610283",
    "kind": "arxiv",
    "version": 2
  }
}