Pith Number

pith:2W45XLZD

pith:2025:2W45XLZDJMTWUPHRYYUUPJ45YZ

not attested not anchored not stored refs pending

Systematically Measuring Ultra-Diffuse Galaxies. VIII. Misfits, Miscasts, and Miscreants

Dennis Zaritsky, Donghyeon J. Khim, Richard Donnerstein

arxiv:2505.24755 v2 · 2025-05-30 · 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{2W45XLZDJMTWUPHRYYUUPJ45YZ}

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	2026-07-05T11:35:35.340483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5b9dbaf234b276a3cf1c62947a79dc651c1e62cc88b8072088856d4c6d843ce

Aliases

arxiv: 2505.24755 · arxiv_version: 2505.24755v2 · doi: 10.48550/arxiv.2505.24755 · pith_short_12: 2W45XLZDJMTW · pith_short_16: 2W45XLZDJMTWUPHR · pith_short_8: 2W45XLZD

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/2W45XLZDJMTWUPHRYYUUPJ45YZ \
  | 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: d5b9dbaf234b276a3cf1c62947a79dc651c1e62cc88b8072088856d4c6d843ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a8e9bb7829cca8f09958ac8ab50a77c52ddc738cbb9ee85225100d407e57123",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-30T16:16:44Z",
    "title_canon_sha256": "9c8c8389675e9583aa88de6fbc383d6b3ccd9bd85594ee8a99181385eedff01f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.24755",
    "kind": "arxiv",
    "version": 2
  }
}