Pith Number

pith:IYZXWDZG

pith:2017:IYZXWDZGLLA77C6PHB6UZSQRIH

not attested not anchored not stored refs pending

Parameter Uncertainty in the Kalman-Bucy Filter

Andrew L. Allan, Samuel N. Cohen

arxiv:1710.02046 v2 · 2017-10-05 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYZXWDZGLLA77C6PHB6UZSQRIH}

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	2026-05-18T00:06:41.417388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46337b0f265ac1ff8bcf387d4cca1141ff46c78e8299ecb3f9c83bbd89e222ce

Aliases

arxiv: 1710.02046 · arxiv_version: 1710.02046v2 · doi: 10.48550/arxiv.1710.02046 · pith_short_12: IYZXWDZGLLA7 · pith_short_16: IYZXWDZGLLA77C6P · pith_short_8: IYZXWDZG

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/IYZXWDZGLLA77C6PHB6UZSQRIH \
  | 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: 46337b0f265ac1ff8bcf387d4cca1141ff46c78e8299ecb3f9c83bbd89e222ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bec2ef48967fc16f14a9651ad9d0e8c10a0b2a283f0f3e3739fffdb8b61bbfd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2017-10-05T14:36:31Z",
    "title_canon_sha256": "df87b44520cac5029569be26d4fb56adc931b5dc873775d9f02a25513bc25336"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.02046",
    "kind": "arxiv",
    "version": 2
  }
}