Pith Number

pith:DF5VEPX7

pith:2012:DF5VEPX72GTAZJR7LXGMELMYNR

not attested not anchored not stored refs pending

Seeking for the leading actor on the cosmic stage: Galaxies versus Supermassive Black Holes

Angela Bongiorno, Antonis Georgakakis, Francesca Civano, Francesco Shankar, Isabelle Gavignaud

arxiv:1211.3258 v1 · 2012-11-14 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DF5VEPX72GTAZJR7LXGMELMYNR}

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	2026-05-18T01:53:15.816197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

197b523effd1a60ca63f5dccc22d986c7fbf29dd9dddb980f3354c18e4e6c4ef

Aliases

arxiv: 1211.3258 · arxiv_version: 1211.3258v1 · doi: 10.48550/arxiv.1211.3258 · pith_short_12: DF5VEPX72GTA · pith_short_16: DF5VEPX72GTAZJR7 · pith_short_8: DF5VEPX7

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/DF5VEPX72GTAZJR7LXGMELMYNR \
  | 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: 197b523effd1a60ca63f5dccc22d986c7fbf29dd9dddb980f3354c18e4e6c4ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "543c98136ff25b4f6fde4ee88fc2ceb37e4b63d9829a9267c498be499155ddf1",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-14T10:07:12Z",
    "title_canon_sha256": "7ed352291d55e994cd5b444f966ab926c4d630f89c8de0ef60bae4aabe7b124d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3258",
    "kind": "arxiv",
    "version": 1
  }
}