Pith Number

pith:Y2HEJ46Y

pith:2007:Y2HEJ46YR7KY2P5B3KA7W4WQIU

not attested not anchored not stored refs pending

Where Centaurus A gets its X-ray knottiness

A. Jordan, A.M. Juett, C. Jones, C.L. Sarazin, D.A. Evans, D.M. Worrall, G.R. Sivakoff, J.H. Croston, K.A. Woodley, M. Birkinshaw, M.J. Hardcastle, N.J. Brassington, P.E.J. Nulsen, R.P. Kraft, S. Raychaudhury, S.S. Murray, W.E. Harris, W.R. Forman

arxiv:0712.3579 v1 · 2007-12-20 · 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{Y2HEJ46YR7KY2P5B3KA7W4WQIU}

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	2026-07-04T17:07:20.608473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c68e44f3d88fd58d3fa1da81fb72d04533c46288e4275a422dac5de1c587aab9

Aliases

arxiv: 0712.3579 · arxiv_version: 0712.3579v1 · doi: 10.48550/arxiv.0712.3579 · pith_short_12: Y2HEJ46YR7KY · pith_short_16: Y2HEJ46YR7KY2P5B · pith_short_8: Y2HEJ46Y

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/Y2HEJ46YR7KY2P5B3KA7W4WQIU \
  | 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: c68e44f3d88fd58d3fa1da81fb72d04533c46288e4275a422dac5de1c587aab9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fd1fc05fdb203dadbd355ad64f46447202eb5b306f68c1fe094a5993fe9cef8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-20T21:20:11Z",
    "title_canon_sha256": "4c0fd68e544e5685ff8c582c9f161419e0696fce3b3c2d27a3a1692203979d17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.3579",
    "kind": "arxiv",
    "version": 1
  }
}