Pith Number

pith:UYE26CZB

pith:2017:UYE26CZBACHGQRX6XT36YRAIVX

not attested not anchored not stored refs pending

Stochastic parameterization identification using ensemble Kalman filtering combined with expectation-maximization and Newton-Raphson maximum likelihood methods

Alberto Carrassi, Magdalena Lucini, Manuel Pulido, Marc Bocquet, Pierre Tandeo

arxiv:1709.07328 v1 · 2017-09-21 · 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{UYE26CZBACHGQRX6XT36YRAIVX}

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	2026-05-18T00:09:30.770350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a609af0b21008e6846febcf7ec4408add59d432784e1c821601376efa35aa55e

Aliases

arxiv: 1709.07328 · arxiv_version: 1709.07328v1 · doi: 10.48550/arxiv.1709.07328 · pith_short_12: UYE26CZBACHG · pith_short_16: UYE26CZBACHGQRX6 · pith_short_8: UYE26CZB

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/UYE26CZBACHGQRX6XT36YRAIVX \
  | 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: a609af0b21008e6846febcf7ec4408add59d432784e1c821601376efa35aa55e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e717a26d453710c89cc924a484c7cf79569c373dff81762465867ac0d26fbec",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2017-09-21T13:53:42Z",
    "title_canon_sha256": "cc426676f7fd1adec392b8b0581f4643e4375045e001992e12d8f68d702401ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07328",
    "kind": "arxiv",
    "version": 1
  }
}