Pith Number

pith:2XAO4THW

pith:2013:2XAO4THWRSX5A3QH6A2LRX5HDA

not attested not anchored not stored refs pending

A general theory of particle filters in hidden Markov models and some applications

Hock Peng Chan, Tze Leung Lai

arxiv:1312.5114 v1 · 2013-12-18 · math.ST · 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{2XAO4THWRSX5A3QH6A2LRX5HDA}

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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	2026-05-18T03:04:16.232921Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5c0ee4cf68cafd06e07f034b8dfa7181a3c2c6904a7d3f67817d57a01653493

Aliases

arxiv: 1312.5114 · arxiv_version: 1312.5114v1 · doi: 10.48550/arxiv.1312.5114 · pith_short_12: 2XAO4THWRSX5 · pith_short_16: 2XAO4THWRSX5A3QH · pith_short_8: 2XAO4THW

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/2XAO4THWRSX5A3QH6A2LRX5HDA \
  | 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: d5c0ee4cf68cafd06e07f034b8dfa7181a3c2c6904a7d3f67817d57a01653493

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ed6ba3fab4350f1458f34da31b6d95664efa96a60d25da00cae259ecefe90a5",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-12-18T12:37:29Z",
    "title_canon_sha256": "cdcf6afba28e80da640cce556a655f46ae2acfff5371752404ce24c4cffc02a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5114",
    "kind": "arxiv",
    "version": 1
  }
}