Pith Number

pith:4VJCTGZI

pith:2016:4VJCTGZIFRFHACFZ7JGHZ2ITSZ

not attested not anchored not stored refs pending

Radio-loud Narrow Line Seyfert 1 under a different perspective: a revised black hole mass estimate from optical spectropolarimetry

2), (2) Technion, (3) INAF-Osservatorio di Torino, (4) Rochester Institute of Technology, Alessandro Capetti (3), Andrew Robinson (4), Ari Laor (2), Ehud Behar (2) ((1), Haifa, Israel, Italy, Ranieri D. Baldi (1, UK, University of Southampton, USA)

arxiv:1602.02783 v1 · 2016-02-08 · 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{4VJCTGZIFRFHACFZ7JGHZ2ITSZ}

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	2026-05-18T01:19:24.396620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e552299b282c4a7008b9fa4c7ce913964e4b762de77358681ef02256096b7344

Aliases

arxiv: 1602.02783 · arxiv_version: 1602.02783v1 · doi: 10.48550/arxiv.1602.02783 · pith_short_12: 4VJCTGZIFRFH · pith_short_16: 4VJCTGZIFRFHACFZ · pith_short_8: 4VJCTGZI

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/4VJCTGZIFRFHACFZ7JGHZ2ITSZ \
  | 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: e552299b282c4a7008b9fa4c7ce913964e4b762de77358681ef02256096b7344

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ada2c445739d0292c1544600b7c6481ea3821d09bd8848241e3e55fefae87a2e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-02-08T21:06:03Z",
    "title_canon_sha256": "b3e9fd82995a31850ec878d89ca55343b3807c4aa35511a49720186d00d05769"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02783",
    "kind": "arxiv",
    "version": 1
  }
}