Pith Number

pith:FXG2QB3K

pith:2012:FXG2QB3KLU7BPY73H55NNVI2S6

not attested not anchored not stored refs pending

Clustering of X-Ray-Selected AGN

Alexis Finoguenov, Nico Cappelluti, Viola Allevato

arxiv:1201.3920 v3 · 2012-01-18 · 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{FXG2QB3KLU7BPY73H55NNVI2S6}

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	2026-05-18T03:56:10.389130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dcda8076a5d3e17e3fb3f7ad6d51a97bde1dc0c85c21ce68058d82bbd4cd264

Aliases

arxiv: 1201.3920 · arxiv_version: 1201.3920v3 · doi: 10.48550/arxiv.1201.3920 · pith_short_12: FXG2QB3KLU7B · pith_short_16: FXG2QB3KLU7BPY73 · pith_short_8: FXG2QB3K

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/FXG2QB3KLU7BPY73H55NNVI2S6 \
  | 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: 2dcda8076a5d3e17e3fb3f7ad6d51a97bde1dc0c85c21ce68058d82bbd4cd264

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3665e5064997efafb152ecd113179df0c9060941f835add7f2d212be53fbba40",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-18T21:00:04Z",
    "title_canon_sha256": "4d74ef804724447674ad25cd2627d8df63c63e41b5236177b0091b445f255532"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3920",
    "kind": "arxiv",
    "version": 3
  }
}