Pith Number

pith:HDWDDET7

pith:2012:HDWDDET7VAS45UGTPEV57AW25T

not attested not anchored not stored refs pending

Anisotropic Norm Bounded Real Lemma for Linear Discrete Time Varying Systems

Alexander P. Kurdyukov, Eugene A. Maximov, Igor G. Vladimirov

arxiv:1208.4081 v1 · 2012-08-20 · cs.SY · cs.IT · math.IT · 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{HDWDDET7VAS45UGTPEV57AW25T}

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	2026-05-18T03:48:25.278529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ec31927fa825ced0d3792bdf82daecf692156e22c4301065ca25abf09af400

Aliases

arxiv: 1208.4081 · arxiv_version: 1208.4081v1 · doi: 10.48550/arxiv.1208.4081 · pith_short_12: HDWDDET7VAS4 · pith_short_16: HDWDDET7VAS45UGT · pith_short_8: HDWDDET7

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/HDWDDET7VAS45UGTPEV57AW25T \
  | 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: 38ec31927fa825ced0d3792bdf82daecf692156e22c4301065ca25abf09af400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a35449585437cff7ccfa71701b09ea064550a54f13c5299e391744e72b37def6",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2012-08-20T18:49:32Z",
    "title_canon_sha256": "d67c0d4b0c540a13927e5bcb44c1249a5d934d80c60bde39bd1267734062602f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4081",
    "kind": "arxiv",
    "version": 1
  }
}