Pith Number

pith:MWPVVOZA

pith:2018:MWPVVOZA6ANTVHRDO3Y3OBKF7Q

not attested not anchored not stored refs pending

A New Kalman Filter Model for Nonlinear Systems Based on Ellipsoidal Bounding

Boris Kargoll, Hamza Alkhatib, Ingo Neumann, Ligang Sun, Vladik Kreinovich

arxiv:1802.02970 v1 · 2018-02-08 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWPVVOZA6ANTVHRDO3Y3OBKF7Q}

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	2026-05-18T00:24:02.691667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

659f5abb20f01b3a9e2376f1b70545fc2b18535f07ca06d18fa950b3e2b6ca59

Aliases

arxiv: 1802.02970 · arxiv_version: 1802.02970v1 · doi: 10.48550/arxiv.1802.02970 · pith_short_12: MWPVVOZA6ANT · pith_short_16: MWPVVOZA6ANTVHRD · pith_short_8: MWPVVOZA

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/MWPVVOZA6ANTVHRDO3Y3OBKF7Q \
  | 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: 659f5abb20f01b3a9e2376f1b70545fc2b18535f07ca06d18fa950b3e2b6ca59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d21eec721bdc54e6c68764c678c22e3ee0eeb83ca860862606d41bd517b6eb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-08T17:23:00Z",
    "title_canon_sha256": "c8a844f0b3ebf6e2cca393d3af579b19eb358d1f594480cdf7802304d997b98a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02970",
    "kind": "arxiv",
    "version": 1
  }
}