Pith Number

pith:FG3VHUDL

pith:2011:FG3VHUDLXSPCGSKU4FBUHNQTP5

not attested not anchored not stored refs pending

Averaging the AGN X-ray spectra from deep Chandra fields

2), (2) Astropysics Group Imperial College London UK, (3) Max Planck Institute f\"ur Extraterrestriche Physik Garching Germany, (4) Mullard Space Science Laboratory University College London Holmbury St. Mary Dorking UK, (5) Osservatorio Astronomico di Brera INAF Milano Italy), A. Corral (5), E. Laird (2), F. J. Carrera (1), J. Digby-North (2) ((1) Instituto de F\'isica de Cantabria (CSIC-UC) Santander Spain, K. Nandra (3, M. J.Page (4), S. Falocco (1), X. Barcons (1)

arxiv:1111.3202 v2 · 2011-11-14 · 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{FG3VHUDLXSPCGSKU4FBUHNQTP5}

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	2026-05-18T02:45:32.453273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29b753d06bbc9e234954e14343b6137f695b4299529a3d26c4aa3f907e46bbdf

Aliases

arxiv: 1111.3202 · arxiv_version: 1111.3202v2 · doi: 10.48550/arxiv.1111.3202 · pith_short_12: FG3VHUDLXSPC · pith_short_16: FG3VHUDLXSPCGSKU · pith_short_8: FG3VHUDL

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/FG3VHUDLXSPCGSKU4FBUHNQTP5 \
  | 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: 29b753d06bbc9e234954e14343b6137f695b4299529a3d26c4aa3f907e46bbdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ca20ec76dccb3338d6f9a07228fa7636d9acb52c4f079f6f4c82ebe295f7871",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-14T13:15:05Z",
    "title_canon_sha256": "1949056fd9818c93d726fb142a0c3dba4208a8e06cd0a6c286876b27a3e9ec3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3202",
    "kind": "arxiv",
    "version": 2
  }
}