Pith Number

pith:IGHFGJJD

pith:2005:IGHFGJJD3UARHF2HIOB3QTXG6R

not attested not anchored not stored refs pending

Chandra and XMM-Newton Observations of a Sample of Low-Redshift FRI and FRII Radio-Galaxy Nuclei

2), (2) Harvard-Smithsonian Center for Astrophysics, (3) University of Hertfordshire), D. A. Evans (1, D. M. Worrall (1), M. Birkinshaw (1) ((1) University of Bristol, M. J. Hardcastle (3), R. P. Kraft (2)

arxiv:astro-ph/0512600 v2 · 2005-12-23 · 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{IGHFGJJD3UARHF2HIOB3QTXG6R}

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	2026-07-04T17:14:46.062960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

418e532523dd011397474383b84ee6f46fae1db2ef359e40d0601fadcd1c85cb

Aliases

arxiv: astro-ph/0512600 · arxiv_version: astro-ph/0512600v2 · doi: 10.48550/arxiv.astro-ph/0512600 · pith_short_12: IGHFGJJD3UAR · pith_short_16: IGHFGJJD3UARHF2H · pith_short_8: IGHFGJJD

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/IGHFGJJD3UARHF2HIOB3QTXG6R \
  | 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: 418e532523dd011397474383b84ee6f46fae1db2ef359e40d0601fadcd1c85cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcdfdca55f436fd892bb2f6f8a3075f5b3d5d76d06059a60bd6d2feefb78eeea",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-12-23T19:59:19Z",
    "title_canon_sha256": "288575574c027dfae1baf670eda8c7a1c449cffb50f0a7dbfb8cb3e3fe455c27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0512600",
    "kind": "arxiv",
    "version": 2
  }
}