Pith Number

pith:5LSE7EE6

pith:2018:5LSE7EE6FMIIZLUEQZNXAWG2IG

not attested not anchored not stored refs pending

An Optimal Experimental Design Framework for Adaptive Inflation and Covariance Localization for Ensemble Filters

Ahmed Attia, Emil Constantinescu

arxiv:1806.10655 v2 · 2018-06-27 · cs.CE · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5LSE7EE6FMIIZLUEQZNXAWG2IG}

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	2026-05-17T23:50:33.913572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eae44f909e2b108cae84865b7058da41be2cf10324f2ee9571992bf7f5d0faa3

Aliases

arxiv: 1806.10655 · arxiv_version: 1806.10655v2 · doi: 10.48550/arxiv.1806.10655 · pith_short_12: 5LSE7EE6FMII · pith_short_16: 5LSE7EE6FMIIZLUE · pith_short_8: 5LSE7EE6

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/5LSE7EE6FMIIZLUEQZNXAWG2IG \
  | 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: eae44f909e2b108cae84865b7058da41be2cf10324f2ee9571992bf7f5d0faa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f75422cde655a979ca229bfe8b79ed2fb890ef74f6092833278d8b996687fa3",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2018-06-27T19:36:44Z",
    "title_canon_sha256": "ced39e22d9674332f8df4cdade8f629e6581c6df5f288abd8437950e427d26f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10655",
    "kind": "arxiv",
    "version": 2
  }
}