Pith Number

pith:EGZ5XN75

pith:2019:EGZ5XN75UNHN2ZMJ3BE3EOI3Z7

not attested not anchored not stored refs pending

A New computation reduction based nonlinear Kalman filter

Amir Abolfazl Suratgar, Milad Behvandi, Mohammad Azam Khosravi

arxiv:1907.09450 v1 · 2019-07-22 · eess.SY · cs.SY · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EGZ5XN75UNHN2ZMJ3BE3EOI3Z7}

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	2026-05-17T23:39:39.172279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b3dbb7fda34edd6589d849b2391bcfd02e65b90ad54aa08aaf9473e5b6ae8b

Aliases

arxiv: 1907.09450 · arxiv_version: 1907.09450v1 · doi: 10.48550/arxiv.1907.09450 · pith_short_12: EGZ5XN75UNHN · pith_short_16: EGZ5XN75UNHN2ZMJ · pith_short_8: EGZ5XN75

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/EGZ5XN75UNHN2ZMJ3BE3EOI3Z7 \
  | 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: 21b3dbb7fda34edd6589d849b2391bcfd02e65b90ad54aa08aaf9473e5b6ae8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3761102dcb1296ab9099374c760976711c0d97fbec9d5e5d2a2eccf88579a9c",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-07-22T17:48:44Z",
    "title_canon_sha256": "8296d50e2e5419ffaf9af238d1308a33fe39f37e10dbc4f5e7ebda21a22bf551"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09450",
    "kind": "arxiv",
    "version": 1
  }
}