Pith Number

pith:CXRFZWID

pith:2025:CXRFZWIDZU63ZLZM5CNJALU37X

not attested not anchored not stored refs pending

A Minimax Optimal Controller for Positive Systems

Alba Gurpegui, Anders Rantzer, Emma Tegling

arxiv:2502.01180 v2 · 2025-02-03 · math.OC · cs.SY · eess.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{CXRFZWIDZU63ZLZM5CNJALU37X}

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	2026-07-05T11:48:22.733454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15e25cd903cd3dbcaf2ce89a902e9bfdce87e6f144778551f81c1e1e4ef57fe0

Aliases

arxiv: 2502.01180 · arxiv_version: 2502.01180v2 · doi: 10.48550/arxiv.2502.01180 · pith_short_12: CXRFZWIDZU63 · pith_short_16: CXRFZWIDZU63ZLZM · pith_short_8: CXRFZWID

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/CXRFZWIDZU63ZLZM5CNJALU37X \
  | 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: 15e25cd903cd3dbcaf2ce89a902e9bfdce87e6f144778551f81c1e1e4ef57fe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "151c3b39edd5e83595be5919b55dc84b566843d313b7faafc9950e5899772958",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-02-03T09:13:13Z",
    "title_canon_sha256": "842d410d39b2ac70c725c8f5680b6bba977cce79db1095f01ec2ab7503409a17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.01180",
    "kind": "arxiv",
    "version": 2
  }
}