Pith Number

pith:5EAKYF52

pith:2009:5EAKYF52HBDJ5CENACJP7P5VDV

not attested not anchored not stored refs pending

The Small Scatter in BH-Host Correlations & The Case for Self-Regulated BH Growth

(2) CITA, (3) OSU), Norman Murray (2), Philip F. Hopkins (1), Todd Thompson (3) ((1) Berkeley

arxiv:0903.3949 v2 · 2009-03-23 · astro-ph.CO · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5EAKYF52HBDJ5CENACJP7P5VDV}

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	2026-05-18T02:14:26.432610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e900ac17ba38469e888d0092ffbfb51d440b4e856da5b7c3872dd588444ae967

Aliases

arxiv: 0903.3949 · arxiv_version: 0903.3949v2 · doi: 10.48550/arxiv.0903.3949 · pith_short_12: 5EAKYF52HBDJ · pith_short_16: 5EAKYF52HBDJ5CEN · pith_short_8: 5EAKYF52

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/5EAKYF52HBDJ5CENACJP7P5VDV \
  | 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: e900ac17ba38469e888d0092ffbfb51d440b4e856da5b7c3872dd588444ae967

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "feacfddbf4059e0a3240d865fa1f66b8b03acf04a9cc86cf61f081363b6480a6",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-03-23T20:04:10Z",
    "title_canon_sha256": "46c4f77fba1a6949e1998e99f7f77eb1a4174d1ab3733000f3cdc0593705ed42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3949",
    "kind": "arxiv",
    "version": 2
  }
}