Pith Number

pith:IIL4JM5H

pith:2025:IIL4JM5HZOOD6GWAX52A2EW7LH

not attested not anchored not stored refs pending

Democracy of AI Numerical Weather Models: An Example of Global Forecasting with FourCastNetv2 Made by a University Research Lab Using GPU

Abram Burrows, David Hall, Henry Li, Iman Khadir, Kyle Krick, Samuel S.P. Shen, Shane Stevenson, Stan Posey

arxiv:2504.17028 v3 · 2025-04-23 · cs.LG · cs.AI · physics.ao-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{IIL4JM5HZOOD6GWAX52A2EW7LH}

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	2026-07-05T11:52:20.229102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4217c4b3a7cb9c3f1ac0bf740d12df59d48388542c72fa63315cd51973374656

Aliases

arxiv: 2504.17028 · arxiv_version: 2504.17028v3 · doi: 10.48550/arxiv.2504.17028 · pith_short_12: IIL4JM5HZOOD · pith_short_16: IIL4JM5HZOOD6GWA · pith_short_8: IIL4JM5H

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/IIL4JM5HZOOD6GWAX52A2EW7LH \
  | 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: 4217c4b3a7cb9c3f1ac0bf740d12df59d48388542c72fa63315cd51973374656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f78f855f53454c853e160102a697f2ba36c30a9837906eca7f700120e5c5a769",
    "cross_cats_sorted": [
      "cs.AI",
      "physics.ao-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-23T18:15:31Z",
    "title_canon_sha256": "af66446f36c978662011fd08eba34360be022cc9b813691d480ec64d1315d4e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.17028",
    "kind": "arxiv",
    "version": 3
  }
}