Pith Number

pith:BKK5DAJV

pith:2009:BKK5DAJVPAJX5VK4A25STON6J4

not attested not anchored not stored refs pending

Self-Regulated Black Hole Growth via Momentum Deposition in Galaxy Merger Simulations

Chung-Pei Ma, Eliot Quataert, Jackson DeBuhr, Philip Hopkins (UC Berkeley)

arxiv:0909.2872 v2 · 2009-09-16 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKK5DAJVPAJX5VK4A25STON6J4}

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	2026-05-18T02:11:47.637852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a95d1813578137ed55c06bb29b9be4f04e70345efd141eb9c2239fec00cc4fa

Aliases

arxiv: 0909.2872 · arxiv_version: 0909.2872v2 · doi: 10.48550/arxiv.0909.2872 · pith_short_12: BKK5DAJVPAJX · pith_short_16: BKK5DAJVPAJX5VK4 · pith_short_8: BKK5DAJV

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/BKK5DAJVPAJX5VK4A25STON6J4 \
  | 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: 0a95d1813578137ed55c06bb29b9be4f04e70345efd141eb9c2239fec00cc4fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7debabced1187a705c8a98f8c4e5d1178bc6b7c199dc52085eb006968fdcaae7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-16T03:07:34Z",
    "title_canon_sha256": "72bb12221e988474ac0a2a424ef8fc8796c27a94d0003e135025e8d57ec22c08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2872",
    "kind": "arxiv",
    "version": 2
  }
}