Pith Number

pith:MBTFOEZT

pith:2018:MBTFOEZTYWX4QXMAVFUNTX6O3C

not attested not anchored not stored refs pending

Narrow-line Seyfert 1 galaxies in the context of the Quasar Main Sequence

Bei You, Bozena Czerny, Marek Nikolajuk, Marzena Sniegowska, Pu Du, Swayamtrupta Panda, Szymon Kozlowski

arxiv:1806.06741 v1 · 2018-06-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MBTFOEZTYWX4QXMAVFUNTX6O3C}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:12:59.249089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6066571333c5afc85d80a968d9dfced89d34913e424614c2b6d3c17b9c73a017

Aliases

arxiv: 1806.06741 · arxiv_version: 1806.06741v1 · doi: 10.48550/arxiv.1806.06741 · pith_short_12: MBTFOEZTYWX4 · pith_short_16: MBTFOEZTYWX4QXMA · pith_short_8: MBTFOEZT

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/MBTFOEZTYWX4QXMAVFUNTX6O3C \
  | 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: 6066571333c5afc85d80a968d9dfced89d34913e424614c2b6d3c17b9c73a017

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "946a34428c509a41710df4875c923bcf8a8f4af4f60c19751a4443da148994b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-18T14:48:38Z",
    "title_canon_sha256": "48703a46614b471844e68c39f79a0d68c2f4578d54a3c8e9334fb482db5dc82b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06741",
    "kind": "arxiv",
    "version": 1
  }
}