Pith Number

pith:OOPP3COB

pith:2019:OOPP3COBBHCI5PPLFAFMA4EIXK

not attested not anchored not stored refs pending

Extended PID Control of Nonlinear Uncertain Systems

Cheng Zhao, Lei Guo

arxiv:1901.00973 v2 · 2019-01-04 · math.OC

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-17T23:56:22.771308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

739efd89c109c48ebdeb280ac07088ba9c90318c7dac3be2e899ea52038596a6

Aliases

arxiv: 1901.00973 · arxiv_version: 1901.00973v2 · doi: 10.48550/arxiv.1901.00973 · pith_short_12: OOPP3COBBHCI · pith_short_16: OOPP3COBBHCI5PPL · pith_short_8: OOPP3COB

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/OOPP3COBBHCI5PPLFAFMA4EIXK \
  | 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: 739efd89c109c48ebdeb280ac07088ba9c90318c7dac3be2e899ea52038596a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00ab5f92f2e46302b1b1fa17d4539c40f84fceb637fceda5947c99bfb9a28490",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-01-04T03:06:20Z",
    "title_canon_sha256": "5287ed896aac67c1434c9c9a47aab36e4a5fadd0b2f9c9da6f2ccb6239174aff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00973",
    "kind": "arxiv",
    "version": 2
  }
}