Pith Number

pith:EHQX6EM3

pith:2019:EHQX6EM3SKD2JIP7WTFBZ7IOSH

not attested not anchored not stored refs pending

A correlation between [O III] line property and X-ray spectral complexity in narrow-line Seyfert 1 galaxies?

A. Vietri, E. Bottacini, E. Congiu, F. Di Mille, G. La Mura, J.H. Fan, L. Foschini, M. Berton, S. Chen, S. Ciroi

arxiv:1909.13242 v1 · 2019-09-29 · astro-ph.GA · 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{EHQX6EM3SKD2JIP7WTFBZ7IOSH}

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	2026-07-05T00:07:57.540080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e17f119b9287a4a1ffb4ca1cfd0e91e2a062c9919fcb7a5a0d040805eeab0a

Aliases

arxiv: 1909.13242 · arxiv_version: 1909.13242v1 · doi: 10.48550/arxiv.1909.13242 · pith_short_12: EHQX6EM3SKD2 · pith_short_16: EHQX6EM3SKD2JIP7 · pith_short_8: EHQX6EM3

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/EHQX6EM3SKD2JIP7WTFBZ7IOSH \
  | 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: 21e17f119b9287a4a1ffb4ca1cfd0e91e2a062c9919fcb7a5a0d040805eeab0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e108349502e87ed4809a42641d349f2af5f6bedc917cc3e3f2105209cebffecd",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-29T09:38:37Z",
    "title_canon_sha256": "99d5d2bd3d817cb81c1393074b69bdc41da6da4c612d839376d41842f8813a29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.13242",
    "kind": "arxiv",
    "version": 1
  }
}