Pith Number

pith:CALJGN55

pith:2022:CALJGN55NQDWPQHBDLTAU5KHKA

not attested not anchored not stored refs pending

An Effective Iterated Two-stage Heuristic Algorithm for the Multiple Traveling Salesmen Problem

Jiongzhi Zheng, Wenchang Xu, Wentao Li, Yawei Hong, Yongfu Chen

arxiv:2201.09424 v2 · 2022-01-24 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CALJGN55NQDWPQHBDLTAU5KHKA}

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	2026-07-05T04:00:22.000754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10169337bd6c0767c0e11ae60a7547501aa81afb78a2241271cbda0c8d630c87

Aliases

arxiv: 2201.09424 · arxiv_version: 2201.09424v2 · doi: 10.48550/arxiv.2201.09424 · pith_short_12: CALJGN55NQDW · pith_short_16: CALJGN55NQDWPQHB · pith_short_8: CALJGN55

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/CALJGN55NQDWPQHBDLTAU5KHKA \
  | 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: 10169337bd6c0767c0e11ae60a7547501aa81afb78a2241271cbda0c8d630c87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c916ce5ea6e186cf5841b9894558315b0c2df2a694a369d2e396d058b6b7c2e6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2022-01-24T02:43:08Z",
    "title_canon_sha256": "e317834458b4b228a4df6bc4d6ad09789495f27fe36019b12382bc8b5da8bc96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.09424",
    "kind": "arxiv",
    "version": 2
  }
}