Pith Number

pith:JA5NDXJ2

pith:2025:JA5NDXJ2CD2N2YQRN23I6765CC

not attested not anchored not stored refs pending

Morphological Feature Distances Among the Spectral Types of SDSS Galaxies

Duho Kim (Chungnam National University), Garreth Martin (University of Nottingham)

arxiv:2504.19484 v2 · 2025-04-28 · 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{JA5NDXJ2CD2N2YQRN23I6765CC}

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.

Cited by

1 paper in Pith

Enhancing Galaxy Classification with U-Net Variational Autoencoders for Image Denoising

Receipt and verification

First computed	2026-07-05T11:18:21.194250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

483ad1dd3a10f4dd62116eb68f7fdd108bd6b7869e11c1259dbb9829abc66fcf

Aliases

arxiv: 2504.19484 · arxiv_version: 2504.19484v2 · doi: 10.48550/arxiv.2504.19484 · pith_short_12: JA5NDXJ2CD2N · pith_short_16: JA5NDXJ2CD2N2YQR · pith_short_8: JA5NDXJ2

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/JA5NDXJ2CD2N2YQRN23I6765CC \
  | 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: 483ad1dd3a10f4dd62116eb68f7fdd108bd6b7869e11c1259dbb9829abc66fcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f909cc73b99e9ccbd6a6def5089199897a95a2d99c8de9f22c91471d796f12b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-28T05:00:09Z",
    "title_canon_sha256": "17f27dd984557813e1032f65e17840e45101c669339a9f1200b68fc83b46890d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.19484",
    "kind": "arxiv",
    "version": 2
  }
}