Pith Number

pith:LS5F6NS3

pith:2019:LS5F6NS3VNJ5AIKPIPAPMCNNT6

not attested not anchored not stored refs pending

The Adaptive LQ Regulator

Omar Hijab

arxiv:1901.04574 v2 · 2019-01-14 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LS5F6NS3VNJ5AIKPIPAPMCNNT6}

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	2026-05-17T23:51:19.158305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cba5f365bab53d0214f43c0f609ad9f85a233a181dd048a1690b73beafbfe26

Aliases

arxiv: 1901.04574 · arxiv_version: 1901.04574v2 · doi: 10.48550/arxiv.1901.04574 · pith_short_12: LS5F6NS3VNJ5 · pith_short_16: LS5F6NS3VNJ5AIKP · pith_short_8: LS5F6NS3

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/LS5F6NS3VNJ5AIKPIPAPMCNNT6 \
  | 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: 5cba5f365bab53d0214f43c0f609ad9f85a233a181dd048a1690b73beafbfe26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31a54ecca356846724c0378540b83afad685525c4dee45b452e4afb22eff61db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-01-14T21:34:46Z",
    "title_canon_sha256": "ed650b80ee49045042b51ccfcec2a2ea72bd64a706d133d67bb2be2174d60469"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04574",
    "kind": "arxiv",
    "version": 2
  }
}