Pith Number

pith:4DZR2WSL

pith:2016:4DZR2WSLBY4QVTHNCCAA67RW7V

not attested not anchored not stored refs pending

Estimating parameters of nonlinear systems using the elitist particle filter based on evolutionary strategies

Christian Hofmann, Christian Huemmer, Roland Maas, Walter Kellermann

arxiv:1604.04198 v4 · 2016-04-14 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DZR2WSLBY4QVTHNCCAA67RW7V}

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	2026-05-18T01:13:39.591356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0f31d5a4b0e390acced10800f7e36fd7d8d630bb3bbfcae0f4fc7eed41a45de

Aliases

arxiv: 1604.04198 · arxiv_version: 1604.04198v4 · doi: 10.48550/arxiv.1604.04198 · pith_short_12: 4DZR2WSLBY4Q · pith_short_16: 4DZR2WSLBY4QVTHN · pith_short_8: 4DZR2WSL

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/4DZR2WSLBY4QVTHNCCAA67RW7V \
  | 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: e0f31d5a4b0e390acced10800f7e36fd7d8d630bb3bbfcae0f4fc7eed41a45de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d29e366e85877d7406d428fdb05ee985b01bb914b615e4534e2557583b9d6805",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2016-04-14T15:59:35Z",
    "title_canon_sha256": "a0c0bcbf38f85a5c444ac093ef4b854eddffb67d9e09e5c3febbea9c7ef6a6c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.04198",
    "kind": "arxiv",
    "version": 4
  }
}