Pith Number

pith:UX7DGBCO

pith:2026:UX7DGBCOPKXARTLEZGVYHMYFR3

not attested not anchored not stored refs pending

When bars and spirals conspire: recurrent build-up of the nuclear regions of disc galaxies

Alessandra Mastrobuono-Battisti, Fran\c{c}oise Combes, Mathias Schultheis, Misha Haywood, Nils Hoyer, Nils Ryde, Paola Di Matteo, Sergey Khoperskov, Tristan Boin

arxiv:2606.23014 v1 · 2026-06-22 · 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{UX7DGBCOPKXARTLEZGVYHMYFR3}

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	2026-06-23T03:14:06.786189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5fe33044e7aae08cd64c9ab83b3058ee7f33e7b4489c55fa76d1398f2f1965c

Aliases

arxiv: 2606.23014 · arxiv_version: 2606.23014v1 · doi: 10.48550/arxiv.2606.23014 · pith_short_12: UX7DGBCOPKXA · pith_short_16: UX7DGBCOPKXARTLE · pith_short_8: UX7DGBCO

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/UX7DGBCOPKXARTLEZGVYHMYFR3 \
  | 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: a5fe33044e7aae08cd64c9ab83b3058ee7f33e7b4489c55fa76d1398f2f1965c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57b1d356328d301d90778d7b9e9094955f3b6873855d40a3548d5086b4d1a2e9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-22T08:24:56Z",
    "title_canon_sha256": "e80a9dcfe4264d3f5e90d7acd8643bd3c4f71c61353b2e4af5f2853bc8a66cf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.23014",
    "kind": "arxiv",
    "version": 1
  }
}