Pith Number

pith:UQW35COB

pith:2009:UQW35COBYN6GDRCEZHXBORR4RH

not attested not anchored not stored refs pending

Empirical evaluation of construction heuristics for the multidimensional assignment problem

Boris Goldengorin, Daniel Karapetyan, Gregory Gutin

arxiv:0906.2960 v1 · 2009-06-16 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQW35COBYN6GDRCEZHXBORR4RH}

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	2026-05-18T03:55:35.820983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a42dbe89c1c37c61c444c9ee17463c89d96b078c3c21e27e8688bb6e9264d7cc

Aliases

arxiv: 0906.2960 · arxiv_version: 0906.2960v1 · doi: 10.48550/arxiv.0906.2960 · pith_short_12: UQW35COBYN6G · pith_short_16: UQW35COBYN6GDRCE · pith_short_8: UQW35COB

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/UQW35COBYN6GDRCEZHXBORR4RH \
  | 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: a42dbe89c1c37c61c444c9ee17463c89d96b078c3c21e27e8688bb6e9264d7cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7229286081061388b3249f7268ffc109a361c66ca4c5925d8a1e58d1e82c5f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2009-06-16T15:47:17Z",
    "title_canon_sha256": "817da0df37417e2e151487ea0d83f0a0abb5feb3db3f1d9df6e6a5b8da78f40b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2960",
    "kind": "arxiv",
    "version": 1
  }
}