Pith Number

pith:2INPFSXG

pith:2026:2INPFSXGWCA3MXR3QPV77QQRR5

not attested not anchored not stored refs pending

On Dimension-Varying Control Systems: A Universal State Space Approach

Daizhan Cheng, Feng Liu, Tielong Shen, Xiaoming Hu

arxiv:2601.14839 v2 · 2026-01-21 · 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{2INPFSXGWCA3MXR3QPV77QQRR5}

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	2026-06-23T02:13:20.220547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d21af2cae6b081b65e3b83ebffc2118f783755f8f7df60aec86d3dd91978f945

Aliases

arxiv: 2601.14839 · arxiv_version: 2601.14839v2 · doi: 10.48550/arxiv.2601.14839 · pith_short_12: 2INPFSXGWCA3 · pith_short_16: 2INPFSXGWCA3MXR3 · pith_short_8: 2INPFSXG

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/2INPFSXGWCA3MXR3QPV77QQRR5 \
  | 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: d21af2cae6b081b65e3b83ebffc2118f783755f8f7df60aec86d3dd91978f945

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77e48143498789f8a12ba66140849a85ab4b3c81cf8f75dfaff296351b5c477c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-01-21T10:14:22Z",
    "title_canon_sha256": "cd2c1c4840d1ebcad8045fa225c992cd600d5c0606313a09cea09fcb4d59650a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.14839",
    "kind": "arxiv",
    "version": 2
  }
}