Pith Number

pith:O42C64KN

pith:2018:O42C64KNGIUIJU6S2SNZQRAO2F

not attested not anchored not stored refs pending

Gamma-ray Emitting Narrow Line Seyfert 1 Galaxies in The Sloan Digital Sky Survey

A. Kaur, A. Mandal, C. S. Stalin, D. Hartmann, M. Ajello, S. Rakshit, Vaidehi S. Paliya

arxiv:1801.01905 v1 · 2018-01-05 · 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{O42C64KNGIUIJU6S2SNZQRAO2F}

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	2026-05-18T00:25:23.158109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77342f714d322884d3d2d49b98440ed16f5067134788d37f8be4ee64a4c15790

Aliases

arxiv: 1801.01905 · arxiv_version: 1801.01905v1 · doi: 10.48550/arxiv.1801.01905 · pith_short_12: O42C64KNGIUI · pith_short_16: O42C64KNGIUIJU6S · pith_short_8: O42C64KN

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/O42C64KNGIUIJU6S2SNZQRAO2F \
  | 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: 77342f714d322884d3d2d49b98440ed16f5067134788d37f8be4ee64a4c15790

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "779fb1882951f4d7cc70f1b682ab082b7e946f3177aacfff240caac2f4c110ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-01-05T19:37:30Z",
    "title_canon_sha256": "93a57da5df8dd33e2bf93d99fe5f95394018aed6e2790a5281e51439b7319570"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01905",
    "kind": "arxiv",
    "version": 1
  }
}