Pith Number

pith:QF3SAVP6

pith:2009:QF3SAVP6CEY6SS23UKCUTKUGWK

not attested not anchored not stored refs pending

Combining Semi-Analytic Models of Galaxy Formation with Simulations of Galaxy Clusters: the Need for AGN Heating

C. J. Short, P. A. Thomas

arxiv:0909.0872 v1 · 2009-09-04 · 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{QF3SAVP6CEY6SS23UKCUTKUGWK}

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	2026-05-18T02:11:59.810304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81772055fe1131e94b5ba28549aa86b2af3ba8a6a2f83ada26e36a0699609fd1

Aliases

arxiv: 0909.0872 · arxiv_version: 0909.0872v1 · doi: 10.48550/arxiv.0909.0872 · pith_short_12: QF3SAVP6CEY6 · pith_short_16: QF3SAVP6CEY6SS23 · pith_short_8: QF3SAVP6

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/QF3SAVP6CEY6SS23UKCUTKUGWK \
  | 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: 81772055fe1131e94b5ba28549aa86b2af3ba8a6a2f83ada26e36a0699609fd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ed58c71bc4e5c7cf00a188ece279529772ed582a673cdb0728400fb5dc77956",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-04T12:23:01Z",
    "title_canon_sha256": "369fc1648bf583082858bffc7b3c7e39909d21513569b2ad924a2ee968fa1bfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0872",
    "kind": "arxiv",
    "version": 1
  }
}