Pith Number

pith:NQZF5KAR

pith:2019:NQZF5KARZUD6XWHFFYGPGUVR4V

not attested not anchored not stored refs pending

From kpcs to the central parsec of NGC 1097: feeding star formation and a black hole at the same time

2), ( 2 ) Universidad de La Laguna, (3) Instituto de Radioastronom\'ia y Astrof\'isica (UNAM), (4) Universit\"ats-Sternwarte M\"unchen (USM), 5), (5) Max-Planck-Institut f\"ur extraterrestrische Physik (MPE) (6) Sorbonne Universit\'es (UPMC-CNRS) ), Andreas Burkert (4, Gustavo Bruzual (3), Juan A. Fernandez-Ontiveros (1, M. Almudena Prieto (1, Marc Schartmann (4, Stephan Charlot (6) ((1) Instituto de Astrof\'isica de Canarias (IAC)

arxiv:1902.09370 v1 · 2019-02-25 · 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{NQZF5KARZUD6XWHFFYGPGUVR4V}

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	2026-05-17T23:51:29.870518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c325ea811cd07ebd8e52e0cf352b1e56f3a831cfe64edf979bcecd445a6db62

Aliases

arxiv: 1902.09370 · arxiv_version: 1902.09370v1 · doi: 10.48550/arxiv.1902.09370 · pith_short_12: NQZF5KARZUD6 · pith_short_16: NQZF5KARZUD6XWHF · pith_short_8: NQZF5KAR

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/NQZF5KARZUD6XWHFFYGPGUVR4V \
  | 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: 6c325ea811cd07ebd8e52e0cf352b1e56f3a831cfe64edf979bcecd445a6db62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da64399f77460ae33ccee43fa624032b7638afbce6f457d33eb5c1ee000cae3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-25T15:33:15Z",
    "title_canon_sha256": "10aa4344a83c2b8be35837572e191dc00bcf00f1758dd076df55488411586979"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09370",
    "kind": "arxiv",
    "version": 1
  }
}