Pith Number

pith:VLA2BZRI

pith:2010:VLA2BZRIG35IVFZ2NNNU7X3OMT

not attested not anchored not stored refs pending

The final verdict by XMM-Newton: the X-ray obscured Seyfert galaxy NGC5506 has a broad Fe K-alpha line

Bologna, E), F), Firenze, G.Matt (Universit\`a degli Studi Roma Tre, G.Risaliti (INAF-Arcetri, I), J.Kaastra (SRON, J.Malzac (CESR, M.Dadina (INAF-IASF, M.Guainazzi (ESAC-ESA, NL), S.Bianchi (Universit\`a degli Studi Roma Tre, Tolouse, Utrecht, Villafranca del Castillo

arxiv:1004.1442 v1 · 2010-04-08 · 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{VLA2BZRIG35IVFZ2NNNU7X3OMT}

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	2026-05-18T02:08:07.650965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aac1a0e62836fa8a973a6b5b4fdf6e64cc7b0d8bd90459e5d6db6b8d08ac4db3

Aliases

arxiv: 1004.1442 · arxiv_version: 1004.1442v1 · doi: 10.48550/arxiv.1004.1442 · pith_short_12: VLA2BZRIG35I · pith_short_16: VLA2BZRIG35IVFZ2 · pith_short_8: VLA2BZRI

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/VLA2BZRIG35IVFZ2NNNU7X3OMT \
  | 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: aac1a0e62836fa8a973a6b5b4fdf6e64cc7b0d8bd90459e5d6db6b8d08ac4db3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa99a8a80ac7e5297e39fd268d2cd24f18021179234cc933e4b631aa56bcd42a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-08T23:30:36Z",
    "title_canon_sha256": "1c04fe4588c9c21f68ef8da6dd2ccfee6adcf44302c3c28d97f4346f34104db2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1442",
    "kind": "arxiv",
    "version": 1
  }
}