Pith Number

pith:L4YYT6XN

pith:2009:L4YYT6XN73SARUYDXTKGKOIBTQ

not attested not anchored not stored refs pending

The Role of Turbulence in AGN Self-Regulation in Galaxy Clusters

Evan Scannapieco, Marcus Br\"uggen

arxiv:0909.1805 v1 · 2009-09-09 · 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{L4YYT6XN73SARUYDXTKGKOIBTQ}

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	2026-05-18T02:11:57.854140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f3189faedfee408d303bcd46539019c129e72b982d5ec1a6790c71e1fed5a4b

Aliases

arxiv: 0909.1805 · arxiv_version: 0909.1805v1 · doi: 10.48550/arxiv.0909.1805 · pith_short_12: L4YYT6XN73SA · pith_short_16: L4YYT6XN73SARUYD · pith_short_8: L4YYT6XN

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/L4YYT6XN73SARUYDXTKGKOIBTQ \
  | 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: 5f3189faedfee408d303bcd46539019c129e72b982d5ec1a6790c71e1fed5a4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a04415529d68b6eaa94ef2b9702181df3577a1f34da47f0fac556285453664b6",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-09T20:04:31Z",
    "title_canon_sha256": "383930795bfa296819e88056e120542cef4b71c5b6615d3a4283f924edb49dd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1805",
    "kind": "arxiv",
    "version": 1
  }
}