Pith Number

pith:UB2YZPXU

pith:2006:UB2YZPXUD22C5PHJSMNBUUCXO6

not attested not anchored not stored refs pending

A log-quadratic relation for predicting supermassive black hole masses from the host bulge Sersic index

Alister W. Graham, Simon P. Driver

arxiv:astro-ph/0607378 v2 · 2006-07-17 · astro-ph

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Cited by

1 paper in Pith

A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity

Receipt and verification

First computed	2026-05-18T03:57:01.165768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0758cbef41eb42ebce9931a1a505777876de8b5a31cabf297524e7d447a9ffb

Aliases

arxiv: astro-ph/0607378 · arxiv_version: astro-ph/0607378v2 · doi: 10.48550/arxiv.astro-ph/0607378

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/UB2YZPXUD22C5PHJSMNBUUCXO6 \
  | 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: a0758cbef41eb42ebce9931a1a505777876de8b5a31cabf297524e7d447a9ffb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddc27e7a2effb7bbb623a3e7d2d087f537d0e6ba5de0319797d4e46fb1151c74",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-17T13:49:59Z",
    "title_canon_sha256": "e7811f31eda9a2c766f8c839e9d39d3779449d03d02c3ff5abd91a63947e3682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607378",
    "kind": "arxiv",
    "version": 2
  }
}