Pith Number

pith:MLQ5L2T2

pith:2017:MLQ5L2T2KUWYECVNHU326HBRLK

not attested not anchored not stored refs pending

When data mining meets optimization: A case study on the quadratic assignment problem

B\'eatrice Duval, Jin-Kao Hao, Yangming Zhou

arxiv:1708.05214 v2 · 2017-08-17 · cs.DM · 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{MLQ5L2T2KUWYECVNHU326HBRLK}

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	2026-05-18T00:33:31.757992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62e1d5ea7a552d820aad3d37af1c315aa6681ab800c646cd8a2a8f6778d8ecf7

Aliases

arxiv: 1708.05214 · arxiv_version: 1708.05214v2 · doi: 10.48550/arxiv.1708.05214 · pith_short_12: MLQ5L2T2KUWY · pith_short_16: MLQ5L2T2KUWYECVN · pith_short_8: MLQ5L2T2

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/MLQ5L2T2KUWYECVNHU326HBRLK \
  | 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: 62e1d5ea7a552d820aad3d37af1c315aa6681ab800c646cd8a2a8f6778d8ecf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "addac84f8594bcec05a5f5061bae3c98370939359493c5ff2649a42e686b1c5d",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-08-17T11:56:20Z",
    "title_canon_sha256": "da0027f9cb68a9a92cdddde647af2ba094e9f6fe4bec08390bacbf25ae2e1b7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05214",
    "kind": "arxiv",
    "version": 2
  }
}