Pith Number

pith:3VZKEZET

pith:2011:3VZKEZETAACJQDRTA7YD6VCGKB

not attested not anchored not stored refs pending

A statistical and computational theory for robust and sparse Kalman smoothing

Aleksandr Y. Aravkin, Gianluigi Pillonetto, James V. Burke

arxiv:1111.2730 v1 · 2011-11-11 · math.OC · math.ST · stat.AP · stat.CO · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VZKEZETAACJQDRTA7YD6VCGKB}

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	2026-05-18T04:08:32.886768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd72a264930004980e3307f03f54465044b01cc295687517cda32a710f0a649c

Aliases

arxiv: 1111.2730 · arxiv_version: 1111.2730v1 · doi: 10.48550/arxiv.1111.2730 · pith_short_12: 3VZKEZETAACJ · pith_short_16: 3VZKEZETAACJQDRT · pith_short_8: 3VZKEZET

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/3VZKEZETAACJQDRTA7YD6VCGKB \
  | 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: dd72a264930004980e3307f03f54465044b01cc295687517cda32a710f0a649c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "202ddd0601353c4c549dc799e0fef65fc09e2b4ea80e79b0956daf4300070e7e",
    "cross_cats_sorted": [
      "math.ST",
      "stat.AP",
      "stat.CO",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-11-11T13:06:55Z",
    "title_canon_sha256": "04ecc26a558d0af5e787c618fcde43eec53f4d74a93da6da0e831717d01d7354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2730",
    "kind": "arxiv",
    "version": 1
  }
}