Pith Number

pith:2ATA2W4X

pith:2020:2ATA2W4XGGMSXFHVGBIASSEZ5U

not attested not anchored not stored refs pending

Coprime Inner/Outer Factorization of SISO Time-Delay Systems and FIR Structure of Their Optimal H-Infinity Controllers

Suat Gumussoy

arxiv:2003.10044 v1 · 2020-03-23 · eess.SY · cs.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{2ATA2W4XGGMSXFHVGBIASSEZ5U}

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	2026-07-05T00:49:49.204916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0260d5b9731992b94f53050094899ed06a3a3085ccc20efe4ffebc898e2f3dc

Aliases

arxiv: 2003.10044 · arxiv_version: 2003.10044v1 · doi: 10.48550/arxiv.2003.10044 · pith_short_12: 2ATA2W4XGGMS · pith_short_16: 2ATA2W4XGGMSXFHV · pith_short_8: 2ATA2W4X

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/2ATA2W4XGGMSXFHVGBIASSEZ5U \
  | 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: d0260d5b9731992b94f53050094899ed06a3a3085ccc20efe4ffebc898e2f3dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05d8778fa41cc3f9fbe3cfa6368b4bce42bebf55e789671bc2e2bcf9e102d623",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2020-03-23T01:34:39Z",
    "title_canon_sha256": "1d6a4b5f592bbf39dde4e213ccdc41e823b9efabba7d08ba1dde5eb66ea1aa83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.10044",
    "kind": "arxiv",
    "version": 1
  }
}