Pith Number

pith:C4FHRVIF

pith:2025:C4FHRVIFHZ7HF4MPKIGRFE35AB

not attested not anchored not stored refs pending

PEAR: Equal Area Weather Forecasting on the Sphere

Christoffer Petersson, Daniel Persson, Hampus Linander, Jan E. Gerken, Pietro Rosso, Tage Tykesson

arxiv:2505.17720 v3 · 2025-05-23 · cs.LG · 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{C4FHRVIFHZ7HF4MPKIGRFE35AB}

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	2026-05-28T02:04:40.867836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170a78d5053e7e72f18f520d12937d00797002d223da4514dc65b877c017c560

Aliases

arxiv: 2505.17720 · arxiv_version: 2505.17720v3 · doi: 10.48550/arxiv.2505.17720 · pith_short_12: C4FHRVIFHZ7H · pith_short_16: C4FHRVIFHZ7HF4MP · pith_short_8: C4FHRVIF

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/C4FHRVIFHZ7HF4MPKIGRFE35AB \
  | 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: 170a78d5053e7e72f18f520d12937d00797002d223da4514dc65b877c017c560

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d937f9e0723dd1e2ca0fc9b9fc1f93aabdfc10ef7e84c7118f81c1c11fba159f",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-05-23T10:37:12Z",
    "title_canon_sha256": "63fa9b76f3fa3cd2bc3d747a86891441e1d5f321c8a5eead915c13b712be3d26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17720",
    "kind": "arxiv",
    "version": 3
  }
}