Pith Number

pith:3STWDQHS

pith:2013:3STWDQHSWWYGXFX5PNXL4EAY25

not attested not anchored not stored refs pending

Principled Non-Linear Feature Selection

Delmiro Fernandez-Reyes, Dimitrios Athanasakis, John Shawe-Taylor

arxiv:1312.5869 v2 · 2013-12-20 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3STWDQHSWWYGXFX5PNXL4EAY25}

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	2026-05-18T02:58:45.142050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dca761c0f2b5b06b96fd7b6ebe1018d7449f493428cf1637b47c36dad923b48f

Aliases

arxiv: 1312.5869 · arxiv_version: 1312.5869v2 · doi: 10.48550/arxiv.1312.5869 · pith_short_12: 3STWDQHSWWYG · pith_short_16: 3STWDQHSWWYGXFX5 · pith_short_8: 3STWDQHS

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/3STWDQHSWWYGXFX5PNXL4EAY25 \
  | 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: dca761c0f2b5b06b96fd7b6ebe1018d7449f493428cf1637b47c36dad923b48f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256552cb4dd3c717893ffaa4412b681513d804c617bf122c4ce55f304ece87c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-12-20T10:16:13Z",
    "title_canon_sha256": "18f9e86bcbf57491a12f26571b69904fe8068db19dcb77cacb47d1913e84a766"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5869",
    "kind": "arxiv",
    "version": 2
  }
}