Pith Number

pith:WNIGMIHZ

pith:2017:WNIGMIHZ2MXWXKPMHQY4MBTJWW

not attested not anchored not stored refs pending

An efficient SPDE approach for El Ni\~no

Hermann Mena, Lena Pfurtscheller

arxiv:1708.04144 v3 · 2017-08-11 · math.NA · 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{WNIGMIHZ2MXWXKPMHQY4MBTJWW}

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	2026-05-18T00:35:10.455304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3506620f9d32f6ba9ec3c31c60669b581c5b9a4c1640470e69ffd3e726c46ae

Aliases

arxiv: 1708.04144 · arxiv_version: 1708.04144v3 · doi: 10.48550/arxiv.1708.04144 · pith_short_12: WNIGMIHZ2MXW · pith_short_16: WNIGMIHZ2MXWXKPM · pith_short_8: WNIGMIHZ

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/WNIGMIHZ2MXWXKPMHQY4MBTJWW \
  | 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: b3506620f9d32f6ba9ec3c31c60669b581c5b9a4c1640470e69ffd3e726c46ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97e9d5b08ff24c5e35fc6a92b43aacfb2b3ee4f5f82359428071e0c364b40c0c",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-11T08:41:55Z",
    "title_canon_sha256": "3d719076857ccc7d1b93684a2d08c5bfd1e08dabd8150e485100fd32544ca1d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04144",
    "kind": "arxiv",
    "version": 3
  }
}