Pith Number

pith:DKSJUN2T

pith:2018:DKSJUN2TZLJMOKEOBY3RBV3J5M

not attested not anchored not stored refs pending

Generating Hard Instances for Robust Combinatorial Optimization

Marc Goerigk, Stephen J. Maher

arxiv:1811.00824 v2 · 2018-11-02 · math.OC · cs.CC · cs.DM · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKSJUN2TZLJMOKEOBY3RBV3J5M}

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	2026-05-17T23:54:28.156106Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1aa49a3753cad2c7288e0e3710d769eb30055eb08b3825f1fbe8caa646761b3b

Aliases

arxiv: 1811.00824 · arxiv_version: 1811.00824v2 · doi: 10.48550/arxiv.1811.00824 · pith_short_12: DKSJUN2TZLJM · pith_short_16: DKSJUN2TZLJMOKEO · pith_short_8: DKSJUN2T

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/DKSJUN2TZLJMOKEOBY3RBV3J5M \
  | 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: 1aa49a3753cad2c7288e0e3710d769eb30055eb08b3825f1fbe8caa646761b3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9221931cf33a76449f5aaf99810371dc5e607b652b9a72250c1e1182237abd4c",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-02T11:20:04Z",
    "title_canon_sha256": "c105567cd5032214420628c0199075835c19ca558a8b01777d236539cdfe1853"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00824",
    "kind": "arxiv",
    "version": 2
  }
}