Pith Number

pith:FPUOTHJY

pith:2013:FPUOTHJYDLEJ7HTQS6OW472NPC

not attested not anchored not stored refs pending

The XMM deep survey in the CDFS IV. Candidate Compton-thick AGN

A. Comastri (INAF/OABO), C. Vignali (BolognaU), D. Elbaz (CEA-Saclay), E. Rovilos (Dureham U.), F. Carrera (IFCA), I. Balestra (MPE), I. Georgantopoulos (INAF/OABO, INAF/OABO, INAF/Padova), J. Fritz (Gent U., K. Iwasawa, M. Brusa (Bologna U., MPE), N. Cappelluti (INAF/OABO), N. Castello-Mor (IFCA), NOA), P. Ranalli (NOA), P. Tozzi (INAF/Trieste), R. Gilli (INAF/OABO), R. J. Mullaney (CEA-Saclay), S. Falocco (IFCA), X. Barcons (IFCA)

arxiv:1303.5556 v1 · 2013-03-22 · 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{FPUOTHJYDLEJ7HTQS6OW472NPC}

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	2026-05-18T00:49:19.615781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be8e99d381ac89f9e70979d6e7f4d789aacc070b28a7ed30acfef73802af3f7

Aliases

arxiv: 1303.5556 · arxiv_version: 1303.5556v1 · doi: 10.48550/arxiv.1303.5556 · pith_short_12: FPUOTHJYDLEJ · pith_short_16: FPUOTHJYDLEJ7HTQ · pith_short_8: FPUOTHJY

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/FPUOTHJYDLEJ7HTQS6OW472NPC \
  | 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: 2be8e99d381ac89f9e70979d6e7f4d789aacc070b28a7ed30acfef73802af3f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75a65f42dfb24e5d5d07cff7b22d76327f08288f429eb7193db2f90746fab192",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-22T09:37:00Z",
    "title_canon_sha256": "96145ae287228be8dc9da77d6d5326b97c81f91bd4971f71f8dd3a3611034480"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5556",
    "kind": "arxiv",
    "version": 1
  }
}