Pith Number

pith:ZDKQ7INO

pith:2006:ZDKQ7INOGJHMQ7D5OS6QECG3WE

not attested not anchored not stored refs pending

The Growth of Black Holes and Bulges at the Cores of Cooling Flows

B. R. McNamara (U. Waterloo), D. A. Rafferty (Ohio U.), M. W. Wise (U. Amsterdam), P. E. J. Nulsen (CfA)

arxiv:astro-ph/0612258 v1 · 2006-12-11 · 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{ZDKQ7INOGJHMQ7D5OS6QECG3WE}

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	2026-05-18T01:40:28.540531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8d50fa1ae324ec87c7d74bd0208dbb11c7f9ea464434a15af03b39633851864

Aliases

arxiv: astro-ph/0612258 · arxiv_version: astro-ph/0612258v1 · doi: 10.48550/arxiv.astro-ph/0612258 · pith_short_12: ZDKQ7INOGJHM · pith_short_16: ZDKQ7INOGJHMQ7D5 · pith_short_8: ZDKQ7INO

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/ZDKQ7INOGJHMQ7D5OS6QECG3WE \
  | 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: c8d50fa1ae324ec87c7d74bd0208dbb11c7f9ea464434a15af03b39633851864

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "262651a388fbe6f4963fbdd3f91196ff1a6987667ee08ca7a592e541c8f85416",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-11T01:49:22Z",
    "title_canon_sha256": "02b927fca30037c5c41d19fb2cea0e22fda27419fc09e42675d0c1c6178ca13e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612258",
    "kind": "arxiv",
    "version": 1
  }
}