Pith Number

pith:SD5NN2JF

pith:2023:SD5NN2JFC4UPA7AI5QZA5EWBLM

not attested not anchored not stored refs pending

Efficient Generator of Mathematical Expressions for Symbolic Regression

Ljup\v{c}o Todorovski, Sa\v{s}o D\v{z}eroski, Sebastian Me\v{z}nar

arxiv:2302.09893 v2 · 2023-02-20 · 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{SD5NN2JFC4UPA7AI5QZA5EWBLM}

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	2026-07-05T06:49:19.377057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90fad6e9251728f07c08ec320e92c15b35f939eb5a254e688734f972e592525c

Aliases

arxiv: 2302.09893 · arxiv_version: 2302.09893v2 · doi: 10.48550/arxiv.2302.09893 · pith_short_12: SD5NN2JFC4UP · pith_short_16: SD5NN2JFC4UPA7AI · pith_short_8: SD5NN2JF

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/SD5NN2JFC4UPA7AI5QZA5EWBLM \
  | 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: 90fad6e9251728f07c08ec320e92c15b35f939eb5a254e688734f972e592525c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34090d5fe618fb301b74c773139991a5db58ca40a17c7ff698c23148414c13e2",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-02-20T10:40:29Z",
    "title_canon_sha256": "b348dd034521f4326e1a79c3aa731d2c71d10613076e1f5ae10241560dfe0924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.09893",
    "kind": "arxiv",
    "version": 2
  }
}