Pith Number

pith:VWCXKBEL

pith:2002:VWCXKBELO4TYA2GZALQC5YKNSL

not attested not anchored not stored refs pending

B2 0648+27: a radio galaxy in a major merger

A. Capetti, C.N. Tadhunter, H.R. de Ruiter, K.A. Wills, P. Parma, R. Fanti, R. Morganti, T.A. Oosterloo

arxiv:astro-ph/0212323 v1 · 2002-12-13 · 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{VWCXKBELO4TYA2GZALQC5YKNSL}

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	2026-07-04T16:31:25.171371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad8575048b77278068d902e02ee14d92e68713f7a003779f5c680b428e10877c

Aliases

arxiv: astro-ph/0212323 · arxiv_version: astro-ph/0212323v1 · doi: 10.48550/arxiv.astro-ph/0212323 · pith_short_12: VWCXKBELO4TY · pith_short_16: VWCXKBELO4TYA2GZ · pith_short_8: VWCXKBEL

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/VWCXKBELO4TYA2GZALQC5YKNSL \
  | 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: ad8575048b77278068d902e02ee14d92e68713f7a003779f5c680b428e10877c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6012066e53cb6a76ca6441a86edce893f428f7893d3f7e23a650c3b481ac2e47",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-13T12:58:11Z",
    "title_canon_sha256": "a9fe66940c221b4d9e4c7083e64aa44da0026cd245ec825fc9f50c72380f6289"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212323",
    "kind": "arxiv",
    "version": 1
  }
}