Pith Number

pith:5IJSBW7I

pith:2017:5IJSBW7ITJAFW2XMLXTHPTGL44

not attested not anchored not stored refs pending

Ensemble Kalman Filters (EnKF) for State Estimation and Prediction of Two-time Scale Nonlinear Systems with Application to Gas Turbine Engines

Khashayar Khorasani, Nader Meskin, Najmeh Daroogheh

arxiv:1710.05244 v1 · 2017-10-14 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5IJSBW7ITJAFW2XMLXTHPTGL44}

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	2026-05-18T00:32:53.893997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea1320dbe89a405b6aec5de677cccbe7100826b7ea3a4b513c7a57ffad42c7c1

Aliases

arxiv: 1710.05244 · arxiv_version: 1710.05244v1 · doi: 10.48550/arxiv.1710.05244 · pith_short_12: 5IJSBW7ITJAF · pith_short_16: 5IJSBW7ITJAFW2XM · pith_short_8: 5IJSBW7I

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/5IJSBW7ITJAFW2XMLXTHPTGL44 \
  | 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: ea1320dbe89a405b6aec5de677cccbe7100826b7ea3a4b513c7a57ffad42c7c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68dbbfa5a66b1eee4ac6cefc383754f65e990524a07288324027fabd9c3e170c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2017-10-14T22:44:22Z",
    "title_canon_sha256": "b0d2e4764a12e6b598aac9d3993df3141edefe92a3ce0dc5426e58e9b207b5cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05244",
    "kind": "arxiv",
    "version": 1
  }
}