Pith Number

pith:ZQLXBWOG

pith:2016:ZQLXBWOG3FOXZHRNEF5OU6YSWQ

not attested not anchored not stored refs pending

Grid Based Nonlinear Filtering Revisited: Recursive Estimation & Asymptotic Optimality

Athina P. Petropulu, Dionysios S. Kalogerias

arxiv:1604.02631 v1 · 2016-04-10 · math.ST · cs.IT · math.IT · math.OC · stat.ME · stat.ML · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQLXBWOG3FOXZHRNEF5OU6YSWQ}

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	2026-05-18T01:08:10.005757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc1770d9c6d95d7c9e2d217aea7b12b40795fad2eb70ba0ca7b8662810ca5c5d

Aliases

arxiv: 1604.02631 · arxiv_version: 1604.02631v1 · doi: 10.48550/arxiv.1604.02631 · pith_short_12: ZQLXBWOG3FOX · pith_short_16: ZQLXBWOG3FOXZHRN · pith_short_8: ZQLXBWOG

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/ZQLXBWOG3FOXZHRNEF5OU6YSWQ \
  | 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: cc1770d9c6d95d7c9e2d217aea7b12b40795fad2eb70ba0ca7b8662810ca5c5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83b17b7ebe5e2ccaf8b4126023de06f8c36f9fe480131858c3f18981a3a62b77",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC",
      "stat.ME",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2016-04-10T03:06:23Z",
    "title_canon_sha256": "08e1bded4d1f43573ca250a30b5ca4514ae032bb8b7bcc0c09660baf4c5d53f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02631",
    "kind": "arxiv",
    "version": 1
  }
}