Pith Number

pith:RCHFVJA5

pith:2015:RCHFVJA533TONOE6ZSE4V4RR2X

not attested not anchored not stored refs pending

Partitioned Update Kalman Filter

Juha Ala-Luhtala, Matti Raitoharju, Robert Pich\'e, Simo Ali-L\"oytty

arxiv:1503.02857 v2 · 2015-03-10 · math.OC · 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{RCHFVJA533TONOE6ZSE4V4RR2X}

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	2026-05-18T01:19:12.370565Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

888e5aa41ddee6e6b89ecc89caf231d5ca917ad46de2caab5d492576cf260601

Aliases

arxiv: 1503.02857 · arxiv_version: 1503.02857v2 · doi: 10.48550/arxiv.1503.02857 · pith_short_12: RCHFVJA533TO · pith_short_16: RCHFVJA533TONOE6 · pith_short_8: RCHFVJA5

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/RCHFVJA533TONOE6ZSE4V4RR2X \
  | 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: 888e5aa41ddee6e6b89ecc89caf231d5ca917ad46de2caab5d492576cf260601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebf988d34edd6ea9bfe292865209ef0285038bc8135dbc812a5b57b8539fa9c9",
    "cross_cats_sorted": [
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-03-10T10:51:09Z",
    "title_canon_sha256": "9a66e1a2247086b19ccb7f6a3b9b6975509c99f10dd55420298e528b3f8b68e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.02857",
    "kind": "arxiv",
    "version": 2
  }
}