Pith Number

pith:VEK3BKTD

pith:2011:VEK3BKTD77EWH32DIKB2THE5VM

not attested not anchored not stored refs pending

The Random Quadratic Assignment Problem

Gerald Paul, H. Eugene Stanley, Jia Shao

arxiv:1101.0779 v1 · 2011-01-04 · cond-mat.stat-mech · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VEK3BKTD77EWH32DIKB2THE5VM}

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	2026-05-18T02:04:13.314826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a915b0aa63ffc963ef434283a99c9dab121dfed1cb8b7a7c9bfbfa1017bd7217

Aliases

arxiv: 1101.0779 · arxiv_version: 1101.0779v1 · doi: 10.48550/arxiv.1101.0779 · pith_short_12: VEK3BKTD77EW · pith_short_16: VEK3BKTD77EWH32D · pith_short_8: VEK3BKTD

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/VEK3BKTD77EWH32DIKB2THE5VM \
  | 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: a915b0aa63ffc963ef434283a99c9dab121dfed1cb8b7a7c9bfbfa1017bd7217

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f74497c8f391456255f61538a00936ddc1acf19e54ea2124da914ce1c0f8bee",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2011-01-04T18:00:58Z",
    "title_canon_sha256": "824f714f5e899eb1dc7e6ac1796fb96dd1c431e5b0adfba11deabf2a124796a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0779",
    "kind": "arxiv",
    "version": 1
  }
}