Pith Number

pith:5QRRSOBZ

pith:2013:5QRRSOBZ7CJIQHYNWE5KJATWOJ

not attested not anchored not stored refs pending

Feature Multi-Selection among Subjective Features

Adam Kalai, Sivan Sabato

arxiv:1302.4297 v3 · 2013-02-18 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QRRSOBZ7CJIQHYNWE5KJATWOJ}

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	2026-05-18T03:25:43.318729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec23193839f892881f0db13aa48276724350e740b8a019d6cfbcaa54100d5b3e

Aliases

arxiv: 1302.4297 · arxiv_version: 1302.4297v3 · doi: 10.48550/arxiv.1302.4297 · pith_short_12: 5QRRSOBZ7CJI · pith_short_16: 5QRRSOBZ7CJIQHYN · pith_short_8: 5QRRSOBZ

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/5QRRSOBZ7CJIQHYNWE5KJATWOJ \
  | 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: ec23193839f892881f0db13aa48276724350e740b8a019d6cfbcaa54100d5b3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03b72a3f18c8e656f5a746b3da802233b16ee327455f195c996018bf4222bdfd",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-02-18T15:00:47Z",
    "title_canon_sha256": "eb905b816644d157cfffa1b40ace8dfe9d35198565333d334b545197b201d35e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4297",
    "kind": "arxiv",
    "version": 3
  }
}