Pith Number

pith:66TNPS25

pith:2023:66TNPS25A2IY4T4ELJNQD2PDHF

not attested not anchored not stored refs pending

State and Parameter Estimation for Affine Nonlinear Systems

Rushikesh Kamalapurkar, Tochukwu Elijah Ogri, Zachary I. Bell

arxiv:2304.01526 v2 · 2023-04-04 · 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{66TNPS25A2IY4T4ELJNQD2PDHF}

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	2026-07-05T06:03:28.558537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7a6d7cb5d06918e4f845a5b01e9e3397e3a165e46f2c1588a7c2d9b08d0bcc2

Aliases

arxiv: 2304.01526 · arxiv_version: 2304.01526v2 · doi: 10.48550/arxiv.2304.01526 · pith_short_12: 66TNPS25A2IY · pith_short_16: 66TNPS25A2IY4T4E · pith_short_8: 66TNPS25

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/66TNPS25A2IY4T4ELJNQD2PDHF \
  | 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: f7a6d7cb5d06918e4f845a5b01e9e3397e3a165e46f2c1588a7c2d9b08d0bcc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb86273cc59161fd6b6873a54647b9c5f9fa958ecc47063ed9922f3d37fc39dc",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2023-04-04T04:33:00Z",
    "title_canon_sha256": "c0cf26a1fd72ab5cd5dc5b789d440a42ac653d6c2fefcf8b6243c6651d07d4cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.01526",
    "kind": "arxiv",
    "version": 2
  }
}