Pith Number

pith:CZK2IOJ4

pith:2025:CZK2IOJ4VEJN4RXZTWZACMRUO2

not attested not anchored not stored refs pending

Fine Flood Forecasts: Incorporating local data into global models through fine-tuning

Emil Ryd, Grey Nearing

arxiv:2504.12559 v1 · 2025-04-17 · cs.LG · physics.geo-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{CZK2IOJ4VEJN4RXZTWZACMRUO2}

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	2026-07-05T10:50:18.321643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1655a4393ca912de46f99db201323476afe1a61a00aca7cfb1547007fc5579a2

Aliases

arxiv: 2504.12559 · arxiv_version: 2504.12559v1 · doi: 10.48550/arxiv.2504.12559 · pith_short_12: CZK2IOJ4VEJN · pith_short_16: CZK2IOJ4VEJN4RXZ · pith_short_8: CZK2IOJ4

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/CZK2IOJ4VEJN4RXZTWZACMRUO2 \
  | 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: 1655a4393ca912de46f99db201323476afe1a61a00aca7cfb1547007fc5579a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "208aaf65adec624c6f80323dec42ea84b0bb6559d1749bad9158ed75a3d4cf91",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-17T01:14:21Z",
    "title_canon_sha256": "a9b9e81a68717d825d04183a8e6df26c0dfbc7fb5c5476ae580d7fc802eae6eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12559",
    "kind": "arxiv",
    "version": 1
  }
}