Pith Number

pith:UX2FOC7P

pith:2014:UX2FOC7PYMCK257SDEZRXEA4TJ

not attested not anchored not stored refs pending

Relativistic Fe K$\alpha$ Line Revealed in the Composite X-ray Spectrum of Narrow Line Seyfert 1 Galaxies --- do their black holes have averagely low or intermediate spins?

Weimin Yuan, Xin-Lin Zhou, Youjun Lu, Zhu Liu

arxiv:1411.4492 v1 · 2014-11-17 · 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{UX2FOC7PYMCK257SDEZRXEA4TJ}

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	2026-05-18T01:41:29.953678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5f4570befc304ad77f219331b901c9a61b982665990c9fdd68f8ad0b6e3240c

Aliases

arxiv: 1411.4492 · arxiv_version: 1411.4492v1 · doi: 10.48550/arxiv.1411.4492 · pith_short_12: UX2FOC7PYMCK · pith_short_16: UX2FOC7PYMCK257S · pith_short_8: UX2FOC7P

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/UX2FOC7PYMCK257SDEZRXEA4TJ \
  | 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: a5f4570befc304ad77f219331b901c9a61b982665990c9fdd68f8ad0b6e3240c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27386c1f0574c465a959c73fdb459308312f4bc6cbe362765b6daf5b8074ad63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-11-17T14:30:35Z",
    "title_canon_sha256": "d31250f65527dca67f301e13a192f45b310abac35ee6658fc3b720874e4b2d53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.4492",
    "kind": "arxiv",
    "version": 1
  }
}