Pith Number

pith:5RPWHSF3

pith:2026:5RPWHSF3MWFNST6FZOQVFKRQWS

not attested not anchored not stored refs pending

Guiding Multi-Objective Genetic Programming with Description Length Improves Symbolic Regression Solutions

Deaglan J. Bartlett, Fabricio Olivetti de Franca, Gabriel Kronberger, Harry Desmond, Pedro G. Ferreira

arxiv:2605.22374 v1 · 2026-05-21 · cs.NE · 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{5RPWHSF3MWFNST6FZOQVFKRQWS}

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	2026-05-22T01:04:40.517607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec5f63c8bb658ad94fc5cba152aa30b48ada23c72d54d82531416fd005d8b3aa

Aliases

arxiv: 2605.22374 · arxiv_version: 2605.22374v1 · doi: 10.48550/arxiv.2605.22374 · pith_short_12: 5RPWHSF3MWFN · pith_short_16: 5RPWHSF3MWFNST6F · pith_short_8: 5RPWHSF3

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/5RPWHSF3MWFNST6FZOQVFKRQWS \
  | 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: ec5f63c8bb658ad94fc5cba152aa30b48ada23c72d54d82531416fd005d8b3aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c785204fe3b38322bde1b8dff09a8f3c882384c7382223d9624d17530ad61e41",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2026-05-21T12:07:05Z",
    "title_canon_sha256": "78324533139acc795339354dd92acadf5376f98c13777996f7f596047af159e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22374",
    "kind": "arxiv",
    "version": 1
  }
}