Pith Number

pith:T7SGYCGZ

pith:2009:T7SGYCGZUS4FC466LKGP55ITO2

not attested not anchored not stored refs pending

The fraction of Compton-thick sources in an INTEGRAL complete AGN sample

A. J. Bird, A. Malizia, F. Panessa, J. B. Stephen, L. Bassani, P. Ubertini

arxiv:0906.5544 v1 · 2009-06-30 · 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{T7SGYCGZUS4FC466LKGP55ITO2}

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	2026-05-18T02:13:11.716501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fe46c08d9a4b85173de5a8cfef51376a160f9402db8db286877669d5f2877d6

Aliases

arxiv: 0906.5544 · arxiv_version: 0906.5544v1 · doi: 10.48550/arxiv.0906.5544 · pith_short_12: T7SGYCGZUS4F · pith_short_16: T7SGYCGZUS4FC466 · pith_short_8: T7SGYCGZ

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/T7SGYCGZUS4FC466LKGP55ITO2 \
  | 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: 9fe46c08d9a4b85173de5a8cfef51376a160f9402db8db286877669d5f2877d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "897af68287e2740b71775a7d2e7ba4642a585b035e2a1d53a544d5f7ce07aa6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-06-30T14:36:10Z",
    "title_canon_sha256": "e5abefa593970a7c7061c9b5eedd40f65dfd7c5cf642c50090e694ddbe2bcc89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5544",
    "kind": "arxiv",
    "version": 1
  }
}