Pith Number

pith:5TBER4PK

pith:2011:5TBER4PKD56BYU36KK34575PLM

not attested not anchored not stored refs pending

Solution of the optimal assignment problem by diagonal scaling algorithms

Laura Grigori, Meisam Sharify, St\'ephane Gaubert

arxiv:1104.3830 v2 · 2011-04-19 · math.NA · 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{5TBER4PKD56BYU36KK34575PLM}

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	2026-05-18T03:08:14.830116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecc248f1ea1f7c1c537e52b7ceffaf5b3ba59c0ac953e3ae0ba972293a088457

Aliases

arxiv: 1104.3830 · arxiv_version: 1104.3830v2 · doi: 10.48550/arxiv.1104.3830 · pith_short_12: 5TBER4PKD56B · pith_short_16: 5TBER4PKD56BYU36 · pith_short_8: 5TBER4PK

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/5TBER4PKD56BYU36KK34575PLM \
  | 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: ecc248f1ea1f7c1c537e52b7ceffaf5b3ba59c0ac953e3ae0ba972293a088457

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e653f2069dd1aa3456561dc88c981f3c432e28f1bef2fc0644dc5730f306c6bd",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-04-19T18:33:13Z",
    "title_canon_sha256": "65a45b47e25242c9b20c12f6f66194c355087f95babfde79041b350d7c9fa7e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3830",
    "kind": "arxiv",
    "version": 2
  }
}