Pith Number

pith:4QKUSWBA

pith:2022:4QKUSWBAPH5EEJE3KNUCEMYAV6

not attested not anchored not stored refs pending

Sparse Convex Optimization Toolkit: A Mixed-Integer Framework

Alireza Olama, Eduardo Camponogara, Jan Kronqvist

arxiv:2210.16896 v1 · 2022-10-30 · 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{4QKUSWBAPH5EEJE3KNUCEMYAV6}

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	2026-07-05T05:11:52.109839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e41549582079fa42249b5368223300afb6fa7bf30456e6e8711fd348a369ca72

Aliases

arxiv: 2210.16896 · arxiv_version: 2210.16896v1 · doi: 10.48550/arxiv.2210.16896 · pith_short_12: 4QKUSWBAPH5E · pith_short_16: 4QKUSWBAPH5EEJE3 · pith_short_8: 4QKUSWBA

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/4QKUSWBAPH5EEJE3KNUCEMYAV6 \
  | 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: e41549582079fa42249b5368223300afb6fa7bf30456e6e8711fd348a369ca72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12ba992e889f9ec9b8b8422ac970748db5ee1345b03b048e8de65772077bd70a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-10-30T17:37:56Z",
    "title_canon_sha256": "5bdde9fa2aac34839f21eda3b020e2782389823f2b00a81ef9dc351617e84ed0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.16896",
    "kind": "arxiv",
    "version": 1
  }
}