Pith Number

pith:2MOJUR2P

pith:2018:2MOJUR2P3UMCRV3JSJ27SZHLLK

not attested not anchored not stored refs pending

A Review of Innovation-Based Methods to Jointly Estimate Model and Observation Error Covariance Matrices in Ensemble Data Assimilation

Alberto Carrassi, Manuel Pulido, Marc Bocquet, Pierre Ailliot, Pierre Tandeo, Takemasa Miyoshi, Yicun Zhen

arxiv:1807.11221 v5 · 2018-07-30 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MOJUR2P3UMCRV3JSJ27SZHLLK}

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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.

Cited by

1 paper in Pith

Hybrid Adaptive Kalman Filtering for Data-Efficient Joint Tracking and Classification

Receipt and verification

First computed	2026-07-05T01:31:47.436350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d31c9a474fdd1828d7699275f964eb5abe8cc84fddb5a7e94abc4b439eb48f87

Aliases

arxiv: 1807.11221 · arxiv_version: 1807.11221v5 · doi: 10.48550/arxiv.1807.11221 · pith_short_12: 2MOJUR2P3UMC · pith_short_16: 2MOJUR2P3UMCRV3J · pith_short_8: 2MOJUR2P

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/2MOJUR2P3UMCRV3JSJ27SZHLLK \
  | 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: d31c9a474fdd1828d7699275f964eb5abe8cc84fddb5a7e94abc4b439eb48f87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c4c53f48937003f6913bd339d87b5b8d2513576fb22d46c8db77a95040f7122",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-07-30T08:17:54Z",
    "title_canon_sha256": "3c870634d13b9bcfebfbbf88051b1dfd72008923e7c4736ed155498ded0c982e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11221",
    "kind": "arxiv",
    "version": 5
  }
}