Pith Number

pith:OU2UZI7A

pith:2018:OU2UZI7AN5J5IILVGELSCAVS7O

not attested not anchored not stored refs pending

Compact Disjunctive Approximations to Nonconvex Quadratically Constrained Programs

Hongbo Dong, Yunqi Luo

arxiv:1811.08122 v1 · 2018-11-20 · 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{OU2UZI7AN5J5IILVGELSCAVS7O}

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	2026-05-18T00:00:16.835801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75354ca3e06f53d4217531172102b2fb9dfd2221ddd56856707f1659b5a07625

Aliases

arxiv: 1811.08122 · arxiv_version: 1811.08122v1 · doi: 10.48550/arxiv.1811.08122 · pith_short_12: OU2UZI7AN5J5 · pith_short_16: OU2UZI7AN5J5IILV · pith_short_8: OU2UZI7A

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/OU2UZI7AN5J5IILVGELSCAVS7O \
  | 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: 75354ca3e06f53d4217531172102b2fb9dfd2221ddd56856707f1659b5a07625

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53d9e696a8c086ce79fbd06503f27fcffb28b187514f7cabea533d6f4f08aab1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-20T08:40:28Z",
    "title_canon_sha256": "51c45fe2e8cf82604aa791ccc43e2eeba52376df1917ffe7dd1a90a7d0f50c1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08122",
    "kind": "arxiv",
    "version": 1
  }
}