Pith Number

pith:6OT2IELR

pith:2022:6OT2IELRLFSRARXYLXYH5UIN3G

not attested not anchored not stored refs pending

Lexicase Selection at Scale

Lee Spector, Li Ding, Ryan Boldi, Thomas Helmuth

arxiv:2208.10719 v1 · 2022-08-23 · cs.NE · 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{6OT2IELRLFSRARXYLXYH5UIN3G}

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	2026-07-05T04:50:38.973913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3a7a4117159651046f85df07ed10dd9b0617a8ebb6de8a66cb8774c361ad5a7

Aliases

arxiv: 2208.10719 · arxiv_version: 2208.10719v1 · doi: 10.48550/arxiv.2208.10719 · pith_short_12: 6OT2IELRLFSR · pith_short_16: 6OT2IELRLFSRARXY · pith_short_8: 6OT2IELR

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/6OT2IELRLFSRARXYLXYH5UIN3G \
  | 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: f3a7a4117159651046f85df07ed10dd9b0617a8ebb6de8a66cb8774c361ad5a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aafd5792133f5677cd9892a51a9d9eb4f94a3bbc3f4383439faa0421126adcc",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2022-08-23T03:58:47Z",
    "title_canon_sha256": "ef1730a420db19046cd30377a03b0c9d799e72bed712b7000fea36ea9937e5fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.10719",
    "kind": "arxiv",
    "version": 1
  }
}