Pith Number

pith:MBIRDL2R

pith:2011:MBIRDL2RQR2WFJCZQOYH3SKCLN

not attested not anchored not stored refs pending

X-ray observations of highly obscured 9.7 micron sources: an efficient method for selecting Compton-thick AGN ?

A. Akylas (NOA), A. Comastri (INAF/OABO), A. Pope (NOAO), D. Elbaz (CEA Saclay), E. Rovilos (INAF/OABO), I. Georgantopoulos (INAF/OABO, K.M. Dasyra (CEA Saclay, L. Armus (Spitzer Science Center), M. Dickinson (NOAO), NOA), Obs. Paris), R. Gilli (INAF/OABO), Y. Wu (Spitzer Science Center)

arxiv:1105.1441 v2 · 2011-05-07 · 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{MBIRDL2RQR2WFJCZQOYH3SKCLN}

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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	2026-05-18T02:02:02.909598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

605111af51847562a45983b07dc9425b7227bd7d287b8c00e36ae0ca4584dddd

Aliases

arxiv: 1105.1441 · arxiv_version: 1105.1441v2 · doi: 10.48550/arxiv.1105.1441 · pith_short_12: MBIRDL2RQR2W · pith_short_16: MBIRDL2RQR2WFJCZ · pith_short_8: MBIRDL2R

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/MBIRDL2RQR2WFJCZQOYH3SKCLN \
  | 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: 605111af51847562a45983b07dc9425b7227bd7d287b8c00e36ae0ca4584dddd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0304116371c68f18c4d577dedb6964449f6c7d90f3ce7ebd91f2b2270d507f59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-07T12:57:24Z",
    "title_canon_sha256": "99c0299711bb708166afbcd89166235e97ff9cd82d82a1b0a072cad5918296d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1441",
    "kind": "arxiv",
    "version": 2
  }
}