Pith Number

pith:5SZQC5QY

pith:2018:5SZQC5QYF4B3BMONEYVSMLQSZU

not attested not anchored not stored refs pending

A primal-dual interior-point method capable of rapidly detecting infeasibility for nonlinear programs

Jie Sun, Xin-Wei Liu, Yu-Hong Dai

arxiv:1807.02900 v1 · 2018-07-08 · 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{5SZQC5QYF4B3BMONEYVSMLQSZU}

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	2026-05-18T00:11:13.387995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecb30176182f03b0b1cd262b262e12cd34d1ba0a89d2c2594d1f9cd2c4dccb51

Aliases

arxiv: 1807.02900 · arxiv_version: 1807.02900v1 · doi: 10.48550/arxiv.1807.02900 · pith_short_12: 5SZQC5QYF4B3 · pith_short_16: 5SZQC5QYF4B3BMON · pith_short_8: 5SZQC5QY

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/5SZQC5QYF4B3BMONEYVSMLQSZU \
  | 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: ecb30176182f03b0b1cd262b262e12cd34d1ba0a89d2c2594d1f9cd2c4dccb51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd2a3b7f053eb97e80839c016ad568bb31ad64c88849899bd7fef23080b45d44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-07-08T23:52:22Z",
    "title_canon_sha256": "a693a85a0b62ba94bd86f23d4746cc40d58827ed3d52ad3eb26def942f5449b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02900",
    "kind": "arxiv",
    "version": 1
  }
}