Pith Number

pith:HH2YVIEZ

pith:2011:HH2YVIEZJMFIOVPK64A4COP3CT

not attested not anchored not stored refs pending

The Halo Occupation Distribution of Active Galactic Nuclei

Colin DeGraf (CMU), Daisuke Nagai (Yale), Jonathan Richardson (Yale), Suchetana Chatterjee (Yale), Tiziana Di Matteo (CMU), Zheng Zheng (Yale/Utah)

arxiv:1104.3550 v2 · 2011-04-18 · astro-ph.CO · 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{HH2YVIEZJMFIOVPK64A4COP3CT}

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	2026-05-18T02:02:23.459907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39f58aa0994b0a8755eaf701c139fb14ecdc82327f8bc1e0f209a2e946710ff4

Aliases

arxiv: 1104.3550 · arxiv_version: 1104.3550v2 · doi: 10.48550/arxiv.1104.3550 · pith_short_12: HH2YVIEZJMFI · pith_short_16: HH2YVIEZJMFIOVPK · pith_short_8: HH2YVIEZ

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/HH2YVIEZJMFIOVPK64A4COP3CT \
  | 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: 39f58aa0994b0a8755eaf701c139fb14ecdc82327f8bc1e0f209a2e946710ff4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e85155bb18f8b992654114ed4df44cf2d4deccddb5cd378502b995e30235b4a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-04-18T17:54:54Z",
    "title_canon_sha256": "56737f0dd5e1ba0205c47521fa4058deebd467099b62b69691cba050a8165af4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3550",
    "kind": "arxiv",
    "version": 2
  }
}