Pith Number

pith:KAEERJB4

pith:2015:KAEERJB4D54NSXOQJKD7N56GCM

not attested not anchored not stored refs pending

A Hybrid Ensemble Learning Approach to Star-Galaxy Classification

Edward J. Kim, Matias Carrasco Kind, Robert J. Brunner

arxiv:1505.02200 v2 · 2015-05-08 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KAEERJB4D54NSXOQJKD7N56GCM}

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	2026-05-18T01:35:04.671181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

500848a43c1f78d95dd04a87f6f7c6132bee326c47d26e32f5148b7d34b914b2

Aliases

arxiv: 1505.02200 · arxiv_version: 1505.02200v2 · doi: 10.48550/arxiv.1505.02200 · pith_short_12: KAEERJB4D54N · pith_short_16: KAEERJB4D54NSXOQ · pith_short_8: KAEERJB4

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/KAEERJB4D54NSXOQJKD7N56GCM \
  | 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: 500848a43c1f78d95dd04a87f6f7c6132bee326c47d26e32f5148b7d34b914b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c60af657dad710220c8851c4850d3b1bc319ba449ebbe8ee016c2adc2b459e16",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-05-08T22:14:48Z",
    "title_canon_sha256": "ccf5bf89fe1929ccba8e4f84406baeecb77c07e5c2992370ab8d37e37ba33377"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02200",
    "kind": "arxiv",
    "version": 2
  }
}