Pith Number

pith:APJZZNLE

pith:2019:APJZZNLEQ75UE5XL7A2PX3WBQT

not attested not anchored not stored refs pending

A Kalman particle filter for online parameter estimation with applications to affine models

Asma Khedher, Jian He, Peter Spreij

arxiv:1905.08552 v1 · 2019-05-21 · stat.CO · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{APJZZNLEQ75UE5XL7A2PX3WBQT}

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	2026-05-17T23:45:42.852362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03d39cb56487fb4276ebf834fbeec184dd902d00956f56365027f9f6aa6fe67c

Aliases

arxiv: 1905.08552 · arxiv_version: 1905.08552v1 · doi: 10.48550/arxiv.1905.08552 · pith_short_12: APJZZNLEQ75U · pith_short_16: APJZZNLEQ75UE5XL · pith_short_8: APJZZNLE

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/APJZZNLEQ75UE5XL7A2PX3WBQT \
  | 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: 03d39cb56487fb4276ebf834fbeec184dd902d00956f56365027f9f6aa6fe67c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33d3e0d0992942e2994dd586fd64355c9bbda54ca8027196e9cf77cf4c1acaa4",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2019-05-21T11:18:02Z",
    "title_canon_sha256": "26a250dd92dbba9132eb5f47a8ff41335e60ba4a793026c0124ab70eea159196"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08552",
    "kind": "arxiv",
    "version": 1
  }
}