Pith Number

pith:5SOHFJTF

pith:2013:5SOHFJTF7KYWXQY4LXV7LS25IH

not attested not anchored not stored refs pending

Feature Selection Strategies for Classifying High Dimensional Astronomical Data Sets

Arun Kumar A., Ashish A. Mahabal, Ciro Donalek, Giuseppe Longo, Matthew J. Graham, Michael J. Turmon, Michael Ting-Chang Yang, N. Sajeeth Philip, S.G. Djorgovski, Thomas J. Fuchs

arxiv:1310.1976 v1 · 2013-10-08 · astro-ph.IM · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5SOHFJTF7KYWXQY4LXV7LS25IH}

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	2026-05-18T00:57:52.633286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec9c72a665fab16bc31c5debf5cb5d41e163e3737c98e10217852cfe4d760ced

Aliases

arxiv: 1310.1976 · arxiv_version: 1310.1976v1 · doi: 10.48550/arxiv.1310.1976 · pith_short_12: 5SOHFJTF7KYW · pith_short_16: 5SOHFJTF7KYWXQY4 · pith_short_8: 5SOHFJTF

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/5SOHFJTF7KYWXQY4LXV7LS25IH \
  | 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: ec9c72a665fab16bc31c5debf5cb5d41e163e3737c98e10217852cfe4d760ced

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "353654f7335a0513d34a123da6feccaedc4d5b3df2836609a889e1def3c97d8a",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-10-08T00:53:10Z",
    "title_canon_sha256": "741be6523199e7ec701e91c19cfac21acead41a9a43ae8cbf362662c92147780"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1976",
    "kind": "arxiv",
    "version": 1
  }
}