Pith Number

pith:Z57W3MLG

pith:2025:Z57W3MLGWCEDE7GSESUBJMIBVV

not attested not anchored not stored refs pending

Regularization of ML models for Earth systems by using longer model timesteps

Damon J Wischik, Frederic Vitart, Hannah M Christensen, Jakob Zscheischler, Mohit Anand, Raghul Parthipan

arxiv:2503.18023 v1 · 2025-03-23 · nlin.CD · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z57W3MLGWCEDE7GSESUBJMIBVV}

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	2026-07-05T10:38:00.713916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf7f6db166b088327cd224a814b101ad7d1830015af67ab0128167167bcfbc6d

Aliases

arxiv: 2503.18023 · arxiv_version: 2503.18023v1 · doi: 10.48550/arxiv.2503.18023 · pith_short_12: Z57W3MLGWCED · pith_short_16: Z57W3MLGWCEDE7GS · pith_short_8: Z57W3MLG

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/Z57W3MLGWCEDE7GSESUBJMIBVV \
  | 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: cf7f6db166b088327cd224a814b101ad7d1830015af67ab0128167167bcfbc6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc17f023d7a9ea14e0de062ee76be24cfa0f2ff9a122e8fdefa65f6e4b62354f",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2025-03-23T10:41:10Z",
    "title_canon_sha256": "6a8979000b56be72467423d322920bf9b5b965029e730d00db47c69cd8718a9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.18023",
    "kind": "arxiv",
    "version": 1
  }
}