Pith Number

pith:NK67GR6L

pith:2018:NK67GR6LKNSKLYMLQSFOSUXSLW

not attested not anchored not stored refs pending

On the orientation of Narrow Line Seyfert I

Fabrizio Tavecchio, Giancarlo Ghirlanda, Massimo Dotti, Tullia Sbarrato

arxiv:1805.06459 v1 · 2018-05-16 · 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{NK67GR6LKNSKLYMLQSFOSUXSLW}

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	2026-05-18T00:08:06.972981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6abdf347cb5364a5e18b848ae952f25d92e925b905ff010aeb352535211f464b

Aliases

arxiv: 1805.06459 · arxiv_version: 1805.06459v1 · doi: 10.48550/arxiv.1805.06459 · pith_short_12: NK67GR6LKNSK · pith_short_16: NK67GR6LKNSKLYML · pith_short_8: NK67GR6L

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/NK67GR6LKNSKLYMLQSFOSUXSLW \
  | 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: 6abdf347cb5364a5e18b848ae952f25d92e925b905ff010aeb352535211f464b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaff850b7fe8357b9cf206793e133378c613aa812ce94db80c23b837c054df79",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-16T18:00:01Z",
    "title_canon_sha256": "c15916eff8adf207da4866f14c919fb0c563f74fa3daa33ddda6d0d17c948a8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06459",
    "kind": "arxiv",
    "version": 1
  }
}