Pith Number

pith:XTUZYDGJ

pith:1997:XTUZYDGJC5MWCJVZJ3INGD7FOY

not attested not anchored not stored refs pending

The Symmetry, Color, and Morphology of Galaxies

Christopher J. Conselice

arxiv:astro-ph/9710234 v1 · 1997-10-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XTUZYDGJC5MWCJVZJ3INGD7FOY}

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

Performance of morphological classifiers for galaxy mergers compared to current machine learning methods

Receipt and verification

First computed	2026-07-04T16:03:19.156015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bce99c0cc917596126b94ed0d30fe576248cf05ceb59396791157d4494c528d8

Aliases

arxiv: astro-ph/9710234 · arxiv_version: astro-ph/9710234v1 · doi: 10.48550/arxiv.astro-ph/9710234 · pith_short_12: XTUZYDGJC5MW · pith_short_16: XTUZYDGJC5MWCJVZ · pith_short_8: XTUZYDGJ

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/XTUZYDGJC5MWCJVZJ3INGD7FOY \
  | 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: bce99c0cc917596126b94ed0d30fe576248cf05ceb59396791157d4494c528d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d85857be6bd1fa3c90e8cc44418af45efbc10de5f12096e4f63b474191a4d5a4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-10-22T09:42:55Z",
    "title_canon_sha256": "5b6ef27a88c4f8dba83040c52f9c76fe1368eeffb7017800c1db87a14878925f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9710234",
    "kind": "arxiv",
    "version": 1
  }
}