Pith Number

pith:7CBWC42J

pith:2017:7CBWC42JAYHX7TEIIR2QZZAPFK

not attested not anchored not stored refs pending

Approximating the Real Structured Stability Radius with Frobenius Norm Bounded Perturbations

Mert Gurbuzbalaban, Michael Overton, Nicola Guglielmi, Tim Mitchell

arxiv:1702.02486 v1 · 2017-02-08 · 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{7CBWC42JAYHX7TEIIR2QZZAPFK}

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	2026-05-18T00:51:05.831805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f883617349060f7fcc8844750ce40f2a80341260c07c31ac472a9c1ddac647cd

Aliases

arxiv: 1702.02486 · arxiv_version: 1702.02486v1 · doi: 10.48550/arxiv.1702.02486 · pith_short_12: 7CBWC42JAYHX · pith_short_16: 7CBWC42JAYHX7TEI · pith_short_8: 7CBWC42J

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/7CBWC42JAYHX7TEIIR2QZZAPFK \
  | 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: f883617349060f7fcc8844750ce40f2a80341260c07c31ac472a9c1ddac647cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ccb5aa2f38f17606c75cebf26c901da69162dfe969ea968cdbdc8f6a081a9d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-08T16:01:23Z",
    "title_canon_sha256": "e15b9ec1d9c41630d69a165f427296e35d5583ed5bc5bea6c46d0975369af7bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.02486",
    "kind": "arxiv",
    "version": 1
  }
}