Pith Number

pith:Q2QNIIGD

pith:2020:Q2QNIIGDSMX6IEK3ITIGNODFJW

not attested not anchored not stored refs pending

Characterization and computation of H-infinity norms for time-delay systems

Suat Gumussoy, Wim Michiels

arxiv:2003.08179 v1 · 2020-03-17 · 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{Q2QNIIGDSMX6IEK3ITIGNODFJW}

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	2026-07-05T00:49:04.792978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86a0d420c3932fe4115b44d066b8654dba780e69b1bbb25801895457c3896397

Aliases

arxiv: 2003.08179 · arxiv_version: 2003.08179v1 · doi: 10.48550/arxiv.2003.08179 · pith_short_12: Q2QNIIGDSMX6 · pith_short_16: Q2QNIIGDSMX6IEK3 · pith_short_8: Q2QNIIGD

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/Q2QNIIGDSMX6IEK3ITIGNODFJW \
  | 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: 86a0d420c3932fe4115b44d066b8654dba780e69b1bbb25801895457c3896397

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "709c02e5a231fad3bb078cdb02d617dac5107188562b0cbae492e2ac27935465",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2020-03-17T17:11:41Z",
    "title_canon_sha256": "be0419c18ea013e05da0d824f1fac9864dd8e12122226ae4d5627b1435ea3013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.08179",
    "kind": "arxiv",
    "version": 1
  }
}