Pith Number

pith:T3G577W5

pith:2014:T3G577W5R7FA6RFTIG23MPXX4Y

not attested not anchored not stored refs pending

Approximate Bayesian Smoothing with Unknown Process and Measurement Noise Covariances

Emre \"Ozkan, Fredrik Gustafsson, Tohid Ardeshiri, Umut Orguner

arxiv:1412.5307 v2 · 2014-12-17 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T3G577W5R7FA6RFTIG23MPXX4Y}

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	2026-06-04T16:08:59.855735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ecddffedd8fca0f44b341b5b63ef7e6147c994aabeed58c23916886623cd018

Aliases

arxiv: 1412.5307 · arxiv_version: 1412.5307v2 · doi: 10.48550/arxiv.1412.5307 · pith_short_12: T3G577W5R7FA · pith_short_16: T3G577W5R7FA6RFT · pith_short_8: T3G577W5

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/T3G577W5R7FA6RFTIG23MPXX4Y \
  | 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: 9ecddffedd8fca0f44b341b5b63ef7e6147c994aabeed58c23916886623cd018

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a43a3625aac900d7785ca9845134371e585337b879c41d2f89463e1abd677b6f",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2014-12-17T09:46:03Z",
    "title_canon_sha256": "e8764165a223326c6693249a5249ffbf96aba813fa2b1da7c9366eb3aba4cd44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5307",
    "kind": "arxiv",
    "version": 2
  }
}