Pith Number

pith:VZBRBQBX

pith:2011:VZBRBQBXD77SZFMU6MWUJHSTWU

not attested not anchored not stored refs pending

Premise Selection for Mathematics by Corpus Analysis and Kernel Methods

Daniel K\"uhlwein, Evgeni Tsivtsivadze, Jesse Alama, Josef Urban, Tom Heskes

arxiv:1108.3446 v2 · 2011-08-17 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VZBRBQBXD77SZFMU6MWUJHSTWU}

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	2026-05-18T03:03:21.541381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae4310c0371fff2c9594f32d449e53b51eeef4f196910326c073ea3bdda30477

Aliases

arxiv: 1108.3446 · arxiv_version: 1108.3446v2 · doi: 10.48550/arxiv.1108.3446 · pith_short_12: VZBRBQBXD77S · pith_short_16: VZBRBQBXD77SZFMU · pith_short_8: VZBRBQBX

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/VZBRBQBXD77SZFMU6MWUJHSTWU \
  | 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: ae4310c0371fff2c9594f32d449e53b51eeef4f196910326c073ea3bdda30477

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f41be1ce44e4c8cb42adece20da21ca1b27347a702f30354a9ec8f5358cf3ff2",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2011-08-17T11:18:55Z",
    "title_canon_sha256": "b398435558d6e3f82b698747bd33fb609ee9c9cf4c962619a48ba0669490c05b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3446",
    "kind": "arxiv",
    "version": 2
  }
}