Pith Number

pith:OTNRPP3L

pith:2018:OTNRPP3LRXJVTHS7OWIYBRF667

not attested not anchored not stored refs pending

Reproducible $k$-means clustering in galaxy feature data from the GAMA survey

Andrew M. Hopkins, Benne W. Holwerda, Chris A. Collins, Ivan K. Baldry, Jochen Liske, Lee S. Kelvin, Paulo J. Lisboa, Sebastian Turner, Steven N. Longmore

arxiv:1810.00887 v1 · 2018-10-01 · 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{OTNRPP3LRXJVTHS7OWIYBRF667}

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	2026-05-18T00:03:01.159479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74db17bf6b8dd3599e5f759180c4bef7c825ee76b015bc76c622f308b8a34a7c

Aliases

arxiv: 1810.00887 · arxiv_version: 1810.00887v1 · doi: 10.48550/arxiv.1810.00887 · pith_short_12: OTNRPP3LRXJV · pith_short_16: OTNRPP3LRXJVTHS7 · pith_short_8: OTNRPP3L

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/OTNRPP3LRXJVTHS7OWIYBRF667 \
  | 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: 74db17bf6b8dd3599e5f759180c4bef7c825ee76b015bc76c622f308b8a34a7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1acfb794af46159d3ef95a551f3bb9addcec3a58620de1717e75832a10507c33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-01T18:00:03Z",
    "title_canon_sha256": "ae5652224412e4712f9f121c9ca83af62e42fc27acf535aa91d088efb69c2096"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00887",
    "kind": "arxiv",
    "version": 1
  }
}