Pith Number

pith:XZVTL6OS

pith:2022:XZVTL6OSNYFISTQXIQELP2DPY5

not attested not anchored not stored refs pending

Gradient Information and Regularization for Gene Expression Programming to Develop Data-Driven Physics Closure Models

Abhishek Deshmukh, Fabian Waschkowski, Haochen Li, Heinz Pitsch, Joseph Klewicki, Richard D. Sandberg, Temistocle Grenga, Yaomin Zhao

arxiv:2211.12341 v1 · 2022-11-22 · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZVTL6OSNYFISTQXIQELP2DPY5}

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	2026-07-05T05:18:16.051287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be6b35f9d26e0a894e174408b7e86fc74b182fc90a3cf9b7042757f3a239b8ce

Aliases

arxiv: 2211.12341 · arxiv_version: 2211.12341v1 · doi: 10.48550/arxiv.2211.12341 · pith_short_12: XZVTL6OSNYFI · pith_short_16: XZVTL6OSNYFISTQX · pith_short_8: XZVTL6OS

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/XZVTL6OSNYFISTQXIQELP2DPY5 \
  | 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: be6b35f9d26e0a894e174408b7e86fc74b182fc90a3cf9b7042757f3a239b8ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a4f444471fe4da642591b74069f0488641d07a92684761c93964a6e3d61f56",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2022-11-22T15:31:42Z",
    "title_canon_sha256": "d455a004581337986ee68e59b099e1d5796206c989a1ab54f00163891110bc12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.12341",
    "kind": "arxiv",
    "version": 1
  }
}