Pith Number

pith:ZJVRH433

pith:2018:ZJVRH4335AA7RBKXPLJB5GK5EU

not attested not anchored not stored refs pending

Improving Subseasonal Forecasting in the Western U.S. with Machine Learning

Jessica Hwang, Judah Cohen, Karl Pfeiffer, Lester Mackey, Paulo Orenstein

arxiv:1809.07394 v3 · 2018-09-19 · stat.AP · cs.CY · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZJVRH4335AA7RBKXPLJB5GK5EU}

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	2026-05-17T23:45:22.484070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca6b13f37be801f885577ad21e995d25150643ba4d72ab8029e2ee9abadc1b0a

Aliases

arxiv: 1809.07394 · arxiv_version: 1809.07394v3 · doi: 10.48550/arxiv.1809.07394 · pith_short_12: ZJVRH4335AA7 · pith_short_16: ZJVRH4335AA7RBKX · pith_short_8: ZJVRH433

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/ZJVRH4335AA7RBKXPLJB5GK5EU \
  | 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: ca6b13f37be801f885577ad21e995d25150643ba4d72ab8029e2ee9abadc1b0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d13d3bca1d5c79884030a036029b0bc44e366a9efaeb0dce9cd61486b835eb4",
    "cross_cats_sorted": [
      "cs.CY",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2018-09-19T20:08:26Z",
    "title_canon_sha256": "11f29f3c873ac864fcc99101fad3121975da6e4d0880d3c9a839a04378bca310"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07394",
    "kind": "arxiv",
    "version": 3
  }
}