Pith Number

pith:MKG7NLX2

pith:2010:MKG7NLX2ML2QCFDKUZ3CO6C4D7

not attested not anchored not stored refs pending

A comparison of hard X-ray photon indices and iron \ka emission lines in X-ray luminous narrow- and broad-line Seyfert 1 galaxies

Shuang-Nan Zhang, Xin-Lin Zhou

arxiv:1003.1772 v2 · 2010-03-09 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MKG7NLX2ML2QCFDKUZ3CO6C4D7}

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	2026-05-18T04:34:46.149019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

628df6aefa62f501146aa67627785c1ff0731670452a2e09e161055cabb74a9b

Aliases

arxiv: 1003.1772 · arxiv_version: 1003.1772v2 · doi: 10.48550/arxiv.1003.1772 · pith_short_12: MKG7NLX2ML2Q · pith_short_16: MKG7NLX2ML2QCFDK · pith_short_8: MKG7NLX2

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/MKG7NLX2ML2QCFDKUZ3CO6C4D7 \
  | 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: 628df6aefa62f501146aa67627785c1ff0731670452a2e09e161055cabb74a9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08f13612e09e06a35e4a6254eefa6f6ab69678f845ae9671a15224f3d0b8e29b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-03-09T03:00:25Z",
    "title_canon_sha256": "34bf725f64cfb35fe5c6492271a471da1724e54111d7836ed2afbb59c7aaacf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1772",
    "kind": "arxiv",
    "version": 2
  }
}