Pith Number

pith:WZ4CLPXW

pith:2011:WZ4CLPXWDRBUAPHTLW5Z5J3KYZ

not attested not anchored not stored refs pending

Wavelet Ensemble Kalman Filters

Jan Mandel, Jonathan D. Beezley, Loren Cobb

arxiv:1102.5554 v1 · 2011-02-27 · math.DS · physics.ao-ph · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WZ4CLPXWDRBUAPHTLW5Z5J3KYZ}

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	2026-05-18T04:27:46.579272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b67825bef61c43403cf35dbb9ea76ac65eabc3b54ba5e2244e911159892aafb4

Aliases

arxiv: 1102.5554 · arxiv_version: 1102.5554v1 · doi: 10.48550/arxiv.1102.5554 · pith_short_12: WZ4CLPXWDRBU · pith_short_16: WZ4CLPXWDRBUAPHT · pith_short_8: WZ4CLPXW

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/WZ4CLPXWDRBUAPHTLW5Z5J3KYZ \
  | 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: b67825bef61c43403cf35dbb9ea76ac65eabc3b54ba5e2244e911159892aafb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fd30b229a6b7b7a710ae133e50bfc67ca4ce95749b96cb736c955c3c0533091",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2011-02-27T21:55:17Z",
    "title_canon_sha256": "e100a8f84a05bd5bbc42ca80b9cbefc9d5911d28e809d2a6d9b0c6d53dc3a1e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5554",
    "kind": "arxiv",
    "version": 1
  }
}