Pith Number

pith:RKEVRLKQ

pith:2016:RKEVRLKQFJZXQKPFDZJERPUJOG

not attested not anchored not stored refs pending

Galaxy Zoo: Morphological Classifications for 120,000 Galaxies in HST Legacy Imaging

Anna Han, Arfon M. Smith, B.D. Simmons, Boris Haeussler, Carolin N. Cardamone, Chris J. Lintott, Claudia Scarlata, Edmond Cheung, Edward M. Edmondson, Karen L. Masters, Kevin Schawinski, Kyle W. Willett, Lucy F. Fortson, Melanie A. Galloway, Melanie Beck, Michael Parrish, R.J. Smethurst, Roger L. Griffith, Ross Hart, Steven P. Bamford, Thomas Melvin

arxiv:1610.03068 v2 · 2016-10-10 · 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{RKEVRLKQFJZXQKPFDZJERPUJOG}

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	2026-05-18T00:55:40.860413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a8958ad502a737829e51e5248be897196f2bdfb3ec742bee145fb46cb98fc0d

Aliases

arxiv: 1610.03068 · arxiv_version: 1610.03068v2 · doi: 10.48550/arxiv.1610.03068 · pith_short_12: RKEVRLKQFJZX · pith_short_16: RKEVRLKQFJZXQKPF · pith_short_8: RKEVRLKQ

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/RKEVRLKQFJZXQKPFDZJERPUJOG \
  | 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: 8a8958ad502a737829e51e5248be897196f2bdfb3ec742bee145fb46cb98fc0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f99798e4df2fc72ac67a85ac33425e3330795a082ba0b349a6cdd8478873dd6a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-10-10T20:00:04Z",
    "title_canon_sha256": "fd05e502a43623c44e4c0412834614baaf4a9592e8cf96e81f18638191ae41d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.03068",
    "kind": "arxiv",
    "version": 2
  }
}