Pith Number

pith:QKU6JFYM

pith:2014:QKU6JFYMJYASMZUF7EX6ZJ34IC

not attested not anchored not stored refs pending

On robustness of discrete time optimal filters

Alexander Veretennikov, Marina Kleptsyna

arxiv:1501.00190 v2 · 2014-12-31 · 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{QKU6JFYMJYASMZUF7EX6ZJ34IC}

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	2026-05-18T01:00:54.060758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82a9e4970c4e01266685f92feca77c40a347563c7e2214c043b110494bf9642f

Aliases

arxiv: 1501.00190 · arxiv_version: 1501.00190v2 · doi: 10.48550/arxiv.1501.00190 · pith_short_12: QKU6JFYMJYAS · pith_short_16: QKU6JFYMJYASMZUF · pith_short_8: QKU6JFYM

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/QKU6JFYMJYASMZUF7EX6ZJ34IC \
  | 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: 82a9e4970c4e01266685f92feca77c40a347563c7e2214c043b110494bf9642f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52a9b7d71bfa0a0ed78403bc279ba3f1b68a00ccda4a872e7736d4dda55aa375",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2014-12-31T19:02:53Z",
    "title_canon_sha256": "278f38c4c33c1f3d1a9e5296d2d87af722eff2290bca00f1e4af82e7d9610a03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00190",
    "kind": "arxiv",
    "version": 2
  }
}