Pith Number

pith:4CSGISQJ

pith:2017:4CSGISQJAQEMO5LYEEUOQFPN4I

not attested not anchored not stored refs pending

Convergence analysis of a family of robust Kalman filters based on the contraction principle

Mattia Zorzi

arxiv:1705.05286 v1 · 2017-05-15 · 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{4CSGISQJAQEMO5LYEEUOQFPN4I}

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	2026-05-18T00:44:30.898709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0a4644a090408c775782128e815ede22564df302a12693735d2f651fc9beb4d

Aliases

arxiv: 1705.05286 · arxiv_version: 1705.05286v1 · doi: 10.48550/arxiv.1705.05286 · pith_short_12: 4CSGISQJAQEM · pith_short_16: 4CSGISQJAQEMO5LY · pith_short_8: 4CSGISQJ

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/4CSGISQJAQEMO5LYEEUOQFPN4I \
  | 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: e0a4644a090408c775782128e815ede22564df302a12693735d2f651fc9beb4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3015bfd67c60642d78462035da47b6352c96e29086f682c3952b549cf4b3e066",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-05-15T15:11:15Z",
    "title_canon_sha256": "f953aa5dbf673b30159f58aefdf30e97dcfa36b555533dcdab5df558860402c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05286",
    "kind": "arxiv",
    "version": 1
  }
}