Pith Number

pith:32TNOPZU

pith:2014:32TNOPZUKAC5JDVNVQ7LUZQT5E

not attested not anchored not stored refs pending

Selection Algorithms with Small Groups

Adrian Dumitrescu, Ke Chen

arxiv:1409.3600 v3 · 2014-09-11 · cs.DS · math.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{32TNOPZUKAC5JDVNVQ7LUZQT5E}

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	2026-05-17T23:49:18.214024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dea6d73f345005d48eadac3eba6613e904ebb3576e1631fdc6296f4b944c9788

Aliases

arxiv: 1409.3600 · arxiv_version: 1409.3600v3 · doi: 10.48550/arxiv.1409.3600 · pith_short_12: 32TNOPZUKAC5 · pith_short_16: 32TNOPZUKAC5JDVN · pith_short_8: 32TNOPZU

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/32TNOPZUKAC5JDVNVQ7LUZQT5E \
  | 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: dea6d73f345005d48eadac3eba6613e904ebb3576e1631fdc6296f4b944c9788

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd9324cb497edc77b13efd65ef6cb8707689d8507fdc5a12cc9cfc119064c60a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-09-11T21:18:21Z",
    "title_canon_sha256": "81cb58342d7f640ae36cfb2d1dba112e0ddace8dcabdad6d5df87949717bd6a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3600",
    "kind": "arxiv",
    "version": 3
  }
}