Pith Number

pith:HQ35VGVF

pith:2015:HQ35VGVFBADPVEL4Q4OA2KKFTW

not attested not anchored not stored refs pending

The spatial clustering of ROSAT All-Sky Survey Active Galactic Nuclei IV. More massive black holes reside in more massive dark matter halos

Alison L. Coil, Bernd Husemann, Hector Aceves, Mirko Krumpe, Nikos Fanidakis, Takamitsu Miyaji

arxiv:1509.01261 v2 · 2015-09-03 · astro-ph.GA · 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{HQ35VGVFBADPVEL4Q4OA2KKFTW}

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	2026-05-18T01:24:24.434821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c37da9aa50806fa917c871c0d29459d95581560c81475fa66470051c7eda691

Aliases

arxiv: 1509.01261 · arxiv_version: 1509.01261v2 · doi: 10.48550/arxiv.1509.01261 · pith_short_12: HQ35VGVFBADP · pith_short_16: HQ35VGVFBADPVEL4 · pith_short_8: HQ35VGVF

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/HQ35VGVFBADPVEL4Q4OA2KKFTW \
  | 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: 3c37da9aa50806fa917c871c0d29459d95581560c81475fa66470051c7eda691

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96a08fadf66badc0087f2a7bfaf205d53d70055614c1ef10cf41cf6f06ee5a47",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-03T20:04:55Z",
    "title_canon_sha256": "76b4d36af845969830ddc4a5a9bead4762b986e304f50fe161e319aa0bc9e8a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01261",
    "kind": "arxiv",
    "version": 2
  }
}