Pith Number

pith:WI4D2LJN

pith:2025:WI4D2LJNXUICQEK53FDBE6B4N4

not attested not anchored not stored refs pending

Huracan: A skillful end-to-end data-driven system for ensemble data assimilation and weather prediction

Haiyu Dong, Hang Zhang, Hongyu Sun, Jiang Bian, Jonathan Weyn, Kit Thambiratnam, Qi Zhang, Weixin Jin, Yanfei Xiang, Zekun Ni

arxiv:2508.18486 v2 · 2025-08-25 · physics.ao-ph · 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{WI4D2LJNXUICQEK53FDBE6B4N4}

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

1 paper in Pith

HealDA: Highlighting the importance of initial errors in end-to-end AI weather forecasts

Receipt and verification

First computed	2026-06-26T00:15:22.508716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2383d2d2dbd1028115dd94612783c6f1f97c28d4f971c43ed3f5b7855fc5597

Aliases

arxiv: 2508.18486 · arxiv_version: 2508.18486v2 · doi: 10.48550/arxiv.2508.18486 · pith_short_12: WI4D2LJNXUIC · pith_short_16: WI4D2LJNXUICQEK5 · pith_short_8: WI4D2LJN

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/WI4D2LJNXUICQEK53FDBE6B4N4 \
  | 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: b2383d2d2dbd1028115dd94612783c6f1f97c28d4f971c43ed3f5b7855fc5597

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dc4f4ed2892c960c05b04a11ab12e1f51f669498e195d7b153d0bf969d1331e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2025-08-25T20:55:46Z",
    "title_canon_sha256": "6429bb0ccf33d0c1fc6d12a01ca185a6e0ba986d98d3df7a05ca33271203c18b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.18486",
    "kind": "arxiv",
    "version": 2
  }
}