Pith Number

pith:ZSKRJ4BL

pith:2014:ZSKRJ4BLGLO7PFJAOIWXVRUTEQ

not attested not anchored not stored refs pending

Across neighbourhood search for numerical optimization

Guohua Wu

arxiv:1401.3376 v3 · 2014-01-14 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZSKRJ4BLGLO7PFJAOIWXVRUTEQ}

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	2026-05-18T01:29:59.632467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc9514f02b32ddf79520722d7ac6932428e58b170e8f77e639ee5c29d2f3d820

Aliases

arxiv: 1401.3376 · arxiv_version: 1401.3376v3 · doi: 10.48550/arxiv.1401.3376 · pith_short_12: ZSKRJ4BLGLO7 · pith_short_16: ZSKRJ4BLGLO7PFJA · pith_short_8: ZSKRJ4BL

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/ZSKRJ4BLGLO7PFJAOIWXVRUTEQ \
  | 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: cc9514f02b32ddf79520722d7ac6932428e58b170e8f77e639ee5c29d2f3d820

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09eb5a21e6bc3085bae94fac28cbcafc01ce9d4b78875f48a517732d0ee8cba2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2014-01-14T22:35:48Z",
    "title_canon_sha256": "57ab77354f99a253eb7e8db97ce2f8b4cefab2d70d3ad40dd7c4bc68eb2532fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.3376",
    "kind": "arxiv",
    "version": 3
  }
}