Pith Number

pith:TC3IIPHG

pith:2009:TC3IIPHGHQDL4CG3UGRCN4NW3K

not attested not anchored not stored refs pending

The spatial distribution of X-ray selected AGN in the Chandra deep fields: a theoretical perspective

Enzo Branchini, Federico Marulli, Lauro Moscardini, Roberto Gilli, Silvia Bonoli, Volker Springel

arxiv:0904.0256 v1 · 2009-04-01 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TC3IIPHGHQDL4CG3UGRCN4NW3K}

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	2026-05-18T02:14:08.149149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98b6843ce63c06be08dba1a226f1b6da9d307b948861bd920c62c7c8c50bc72d

Aliases

arxiv: 0904.0256 · arxiv_version: 0904.0256v1 · doi: 10.48550/arxiv.0904.0256 · pith_short_12: TC3IIPHGHQDL · pith_short_16: TC3IIPHGHQDL4CG3 · pith_short_8: TC3IIPHG

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/TC3IIPHGHQDL4CG3UGRCN4NW3K \
  | 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: 98b6843ce63c06be08dba1a226f1b6da9d307b948861bd920c62c7c8c50bc72d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78a693408be799f9be71ccef574c566cb64d54a553d3ea78bae4a465cb8492e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-01T20:21:23Z",
    "title_canon_sha256": "9a529d75b8028e8c9c55dd167686eae42f3bec7f1cda5754cf40e097d621317b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0256",
    "kind": "arxiv",
    "version": 1
  }
}