Pith Number

pith:UZG3TOGQ

pith:2013:UZG3TOGQOGGIFO4CMQBPIXQAUE

not attested not anchored not stored refs pending

PENLAB: A MATLAB solver for nonlinear semidefinite optimization

Jan Fiala, Michael Stingl, Michal Ko\v{c}vara

arxiv:1311.5240 v1 · 2013-11-20 · 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{UZG3TOGQOGGIFO4CMQBPIXQAUE}

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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.

Cited by

1 paper in Pith

On the Practical Implementation of a Sequential Quadratic Programming Algorithm for Nonconvex Sum-of-squares Problems

Receipt and verification

First computed	2026-05-18T03:06:33.907790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a64db9b8d0718c82bb826402f45e00a13dd9b81be116a18db6c1b3c7c5d1a2dd

Aliases

arxiv: 1311.5240 · arxiv_version: 1311.5240v1 · doi: 10.48550/arxiv.1311.5240 · pith_short_12: UZG3TOGQOGGI · pith_short_16: UZG3TOGQOGGIFO4C · pith_short_8: UZG3TOGQ

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/UZG3TOGQOGGIFO4CMQBPIXQAUE \
  | 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: a64db9b8d0718c82bb826402f45e00a13dd9b81be116a18db6c1b3c7c5d1a2dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77a36ac0c2a20cd524051f9a3778ab648f981bca2a9ab946e45bea22e9f33e23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-11-20T21:16:21Z",
    "title_canon_sha256": "0a8c0280f718fe60aa1aee129a5773e455c950c5f02abe33e95152eb92cde668"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5240",
    "kind": "arxiv",
    "version": 1
  }
}