Pith Number

pith:H2VWKBET

pith:2026:H2VWKBETPAFIA4FGCL6DIAQQGM

not attested not anchored not stored refs pending

On the Genealogy of Machine Learning Weather Prediction

Mohammad Hassan Erfani

arxiv:2607.05045 v1 · 2026-07-06 · 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{H2VWKBETPAFIA4FGCL6DIAQQGM}

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	2026-07-07T02:20:20.327139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eab650493780a8070a612fc340210332d908f4dd33f3e97aca04acda7d638db

Aliases

arxiv: 2607.05045 · arxiv_version: 2607.05045v1 · doi: 10.48550/arxiv.2607.05045 · pith_short_12: H2VWKBETPAFI · pith_short_16: H2VWKBETPAFIA4FG · pith_short_8: H2VWKBET

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/H2VWKBETPAFIA4FGCL6DIAQQGM \
  | 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: 3eab650493780a8070a612fc340210332d908f4dd33f3e97aca04acda7d638db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50d6b1fae1a7b0fc2b955e44a1ef23d0aac8496bb83da32300eb35580d2f0edb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2026-07-06T13:21:13Z",
    "title_canon_sha256": "d5c84d125d9840cb4ea50797b08d8c0e5ab122394fbc12d13e0beefc5a9ed107"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.05045",
    "kind": "arxiv",
    "version": 1
  }
}