Pith Number

pith:PGDPPUFM

pith:2021:PGDPPUFMX67PUOR3M3JL2MM7GG

not attested not anchored not stored refs pending

Optimal Sensor Gain Control for Minimum-Information Estimation of Continuous-Time Gauss-Markov Processes

Takashi Tanaka, Valeri Ugrinovskii, Vrushabh Zinage

arxiv:2109.13854 v4 · 2021-09-28 · 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{PGDPPUFMX67PUOR3M3JL2MM7GG}

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	2026-07-05T04:09:15.395431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7986f7d0acbfbefa3a3b66d2bd319f31b111ce2b4ffdd5b91441198c686f2286

Aliases

arxiv: 2109.13854 · arxiv_version: 2109.13854v4 · doi: 10.48550/arxiv.2109.13854 · pith_short_12: PGDPPUFMX67P · pith_short_16: PGDPPUFMX67PUOR3 · pith_short_8: PGDPPUFM

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/PGDPPUFMX67PUOR3M3JL2MM7GG \
  | 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: 7986f7d0acbfbefa3a3b66d2bd319f31b111ce2b4ffdd5b91441198c686f2286

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d806dcf57f27d274b5985a54fd2abc3a7b8c11aa1c440baa03e9d4ed2de677c1",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-09-28T16:38:53Z",
    "title_canon_sha256": "bd1be601ddd435a49915cb36d9030f6cf46f5dd33a99e6cb8a7d868001d41470"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13854",
    "kind": "arxiv",
    "version": 4
  }
}