Pith Number

pith:4E5WBLNL

pith:2021:4E5WBLNLLRCYJLKQ6ARYTZS2VE

not attested not anchored not stored refs pending

A Julia implementation of Algorithm NCL for constrained optimization

Ding Ma, Dominique Orban, Michael A. Saunders

arxiv:2101.02164 v1 · 2021-01-06 · math.OC · cs.MS · cs.NA · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4E5WBLNLLRCYJLKQ6ARYTZS2VE}

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.

Cited by

1 paper in Pith

A Feasible Reduced Space Method for Real-Time Optimal Power Flow

Receipt and verification

First computed	2026-07-05T02:09:55.924821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e13b60adab5c4584ad50f02389e65aa90a45bb33ca40e45a7f0091008a32268f

Aliases

arxiv: 2101.02164 · arxiv_version: 2101.02164v1 · doi: 10.48550/arxiv.2101.02164 · pith_short_12: 4E5WBLNLLRCY · pith_short_16: 4E5WBLNLLRCYJLKQ · pith_short_8: 4E5WBLNL

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/4E5WBLNLLRCYJLKQ6ARYTZS2VE \
  | 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: e13b60adab5c4584ad50f02389e65aa90a45bb33ca40e45a7f0091008a32268f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c2f4841bfd6beb9f372e866ad1663574fa6dfcc18cc4650fdc167941cca16ef",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-01-06T17:57:44Z",
    "title_canon_sha256": "fd36fa10e173054b328e1bf1e609f0ec1038aa3eae9e959929c8d93cbc2c4f40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.02164",
    "kind": "arxiv",
    "version": 1
  }
}