Pith Number

pith:7ZDK7VJW

pith:2024:7ZDK7VJWAJAKSJHAPLVDIFVXEH

not attested not anchored not stored refs pending

Why do some Ultra Diffuse Galaxies have Rich Globular Cluster Systems?

Aaron J. Romanowsky, Anna Ferre-Mateu, Duncan A. Forbes, Jean P. Brodie, Jonah Gannon, Maria Luisa Buzzo, Michelle Collins

arxiv:2412.06155 v1 · 2024-12-09 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZDK7VJWAJAKSJHAPLVDIFVXEH}

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	2026-07-05T09:46:16.256641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe46afd5360240a924e07aea3416b721e1c1e642189ce1fea019587ca32d5e82

Aliases

arxiv: 2412.06155 · arxiv_version: 2412.06155v1 · doi: 10.48550/arxiv.2412.06155 · pith_short_12: 7ZDK7VJWAJAK · pith_short_16: 7ZDK7VJWAJAKSJHA · pith_short_8: 7ZDK7VJW

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/7ZDK7VJWAJAKSJHAPLVDIFVXEH \
  | 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: fe46afd5360240a924e07aea3416b721e1c1e642189ce1fea019587ca32d5e82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cae86a494f86fdf303fae9e9416d51f157c949908f3f61c12fb695ec37c561d5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-12-09T02:34:37Z",
    "title_canon_sha256": "6c7b563cc38feded96ef4e3f0f36ed3507edca18d7bfcd711cc9953c1c6c3a55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.06155",
    "kind": "arxiv",
    "version": 1
  }
}