Pith Number

pith:QVCHHW2N

pith:2006:QVCHHW2NJTPYYJCCWJHKHCMYN7

not attested not anchored not stored refs pending

Nuclear activity in galaxies driven by binary supermassive black holes

Andrei P. Lobanov (Max-Planck-Institute for Radioastronomy, Bonn, Germany)

arxiv:astro-ph/0606198 v1 · 2006-06-08 · 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{QVCHHW2NJTPYYJCCWJHKHCMYN7}

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	2026-05-18T01:40:30.209202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

854473db4d4cdf8c2442b24ea389986fdceb302b10ab4484ba2b5ea6a1d94862

Aliases

arxiv: astro-ph/0606198 · arxiv_version: astro-ph/0606198v1 · doi: 10.48550/arxiv.astro-ph/0606198 · pith_short_12: QVCHHW2NJTPY · pith_short_16: QVCHHW2NJTPYYJCC · pith_short_8: QVCHHW2N

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/QVCHHW2NJTPYYJCCWJHKHCMYN7 \
  | 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: 854473db4d4cdf8c2442b24ea389986fdceb302b10ab4484ba2b5ea6a1d94862

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c3b6794e9d7122cfc66035f84a0a58ade52fa954565de93c4596d1448a5b6d8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-08T16:04:30Z",
    "title_canon_sha256": "cf1d9f6373250b230e10781f9a3804c9dbfb0858a8d4cc70cc6d345190b6c666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606198",
    "kind": "arxiv",
    "version": 1
  }
}