Pith Number

pith:YMB5KJ6H

pith:2018:YMB5KJ6HPPXEM7Z66PH3VEZ272

not attested not anchored not stored refs pending

Narrow vs. Broad line Seyfert 1 galaxies: X-ray, optical and mid-infrared AGN characteristics

Jelena Kova\v{c}evi\'c-Doj\v{c}inovi\'c, Luka \v{C}. Popovi\'c, Ma\v{s}a Laki\'cevi\'c

arxiv:1805.06437 v1 · 2018-05-16 · 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{YMB5KJ6HPPXEM7Z66PH3VEZ272}

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	2026-05-18T00:15:13.117601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c303d527c77bee467f3ef3cfba933afe9fa915dd9bf5dc14f213ee268044326a

Aliases

arxiv: 1805.06437 · arxiv_version: 1805.06437v1 · doi: 10.48550/arxiv.1805.06437 · pith_short_12: YMB5KJ6HPPXE · pith_short_16: YMB5KJ6HPPXEM7Z6 · pith_short_8: YMB5KJ6H

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/YMB5KJ6HPPXEM7Z66PH3VEZ272 \
  | 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: c303d527c77bee467f3ef3cfba933afe9fa915dd9bf5dc14f213ee268044326a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "176d261746d13b76e56c5354a5c70364346e78e9da9e0ab5d1d27870214555f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-16T17:33:05Z",
    "title_canon_sha256": "9b0453879595ee4245c157605c91f82988469e6d81de285a9a6df57ba60d1d50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06437",
    "kind": "arxiv",
    "version": 1
  }
}