Pith Number

pith:3B4I2EXF

pith:2011:3B4I2EXF7GDV7P3KUIIQGHI7AW

not attested not anchored not stored refs pending

"Revealing a Population of Heavily Obscured Active Galactic Nuclei at z=0.5-1 in the Chandra Deep Field-South

A.C. Fabian, A. Comastri, B.D. Lehmer, B. Luo, C. Vignali, D.A. Rafferty, D.M. Alexander, D.P. Schneider, F.E. Bauer, M. Brusa, R. Gilli, W.N. Brandt, Y.Q. Xue

arxiv:1107.3148 v1 · 2011-07-15 · 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{3B4I2EXF7GDV7P3KUIIQGHI7AW}

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.

Cited by

1 paper in Pith

Nuclear Activity and Host Galaxy Properties of Low-Luminosity AGN Identified from VLA Observations

Receipt and verification

First computed	2026-05-18T02:01:16.033214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8788d12e5f9875fbf6aa211031d1f058609db69894eaa264a94c72e80f7a7de

Aliases

arxiv: 1107.3148 · arxiv_version: 1107.3148v1 · doi: 10.48550/arxiv.1107.3148 · pith_short_12: 3B4I2EXF7GDV · pith_short_16: 3B4I2EXF7GDV7P3K · pith_short_8: 3B4I2EXF

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/3B4I2EXF7GDV7P3KUIIQGHI7AW \
  | 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: d8788d12e5f9875fbf6aa211031d1f058609db69894eaa264a94c72e80f7a7de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd5b8f03801091822a28960a2065fb7208deb5d182fd162bc423f2b1e7553824",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-15T20:00:02Z",
    "title_canon_sha256": "cae1793d9805f66d1adb0a5e42dd67e58fffdd5c5439b587c4a8b76b43c3bbb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3148",
    "kind": "arxiv",
    "version": 1
  }
}