Pith Number

pith:OFTWC6B6

pith:2021:OFTWC6B66B6S27QDIJ4DKH7JZF

not attested not anchored not stored refs pending

Data-driven geophysical forecasting: Simple, low-cost, and accurate baselines with kernel methods

Boumediene Hamzi, Houman Owhadi, Romit Maulik

arxiv:2103.10935 v2 · 2021-02-13 · physics.ao-ph · math.DS · physics.flu-dyn · physics.geo-ph · 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{OFTWC6B66B6S27QDIJ4DKH7JZF}

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	2026-07-05T03:04:22.459522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

716761783ef07d2d7e034278351fe9c95dcf011dd800188a9052fd251503811a

Aliases

arxiv: 2103.10935 · arxiv_version: 2103.10935v2 · doi: 10.48550/arxiv.2103.10935 · pith_short_12: OFTWC6B66B6S · pith_short_16: OFTWC6B66B6S27QD · pith_short_8: OFTWC6B6

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/OFTWC6B66B6S27QDIJ4DKH7JZF \
  | 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: 716761783ef07d2d7e034278351fe9c95dcf011dd800188a9052fd251503811a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39a925c111f66a8082a8e3165996c1d11f9a7f9b1ed11c057e7518be5adc3a2e",
    "cross_cats_sorted": [
      "math.DS",
      "physics.flu-dyn",
      "physics.geo-ph",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2021-02-13T19:57:33Z",
    "title_canon_sha256": "1a6592c6c4881a8ad04ca09e97b3c87bdbf2f1dc422bb222eb5a6453c50e1dfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10935",
    "kind": "arxiv",
    "version": 2
  }
}