Pith Number

pith:6Y6ORQB5

pith:2023:6Y6ORQB57I77SZADEMGZU6O6EF

not attested not anchored not stored refs pending

FengWu-4DVar: Coupling the Data-driven Weather Forecasting Model with 4D Variational Assimilation

Kang Chen, Lei Bai, Tao Han, Wanli Ouyang, Wei Xue, Yi Xiao

arxiv:2312.12455 v2 · 2023-12-16 · physics.ao-ph · cs.AI · 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{6Y6ORQB57I77SZADEMGZU6O6EF}

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.

Cited by

2 papers in Pith

RealBench: Benchmarking Data-Driven Numerical Weather Forecasting Under Operational Conditions and Extreme Event Challenges

Earth-o1: A Grid-free Observation-native Atmospheric World Model

Receipt and verification

First computed	2026-07-05T08:20:26.365842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f63ce8c03dfa3ff96403230d9a79de215f1629405b3aecbeff917e20e78088f0

Aliases

arxiv: 2312.12455 · arxiv_version: 2312.12455v2 · doi: 10.48550/arxiv.2312.12455 · pith_short_12: 6Y6ORQB57I77 · pith_short_16: 6Y6ORQB57I77SZAD · pith_short_8: 6Y6ORQB5

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/6Y6ORQB57I77SZADEMGZU6O6EF \
  | 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: f63ce8c03dfa3ff96403230d9a79de215f1629405b3aecbeff917e20e78088f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec5de65951fa36330a25da7f6e3dcba57c8b41e73d8890f92818138787ac5fac",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2023-12-16T02:07:56Z",
    "title_canon_sha256": "e9d7a4853999f25720f191a98cf27606e40bc9f6044af2192ce05b4b048577a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.12455",
    "kind": "arxiv",
    "version": 2
  }
}