Pith Number

pith:DHVC2HH7

pith:2022:DHVC2HH7T4AW33W6EUZJSCV52N

not attested not anchored not stored refs pending

Reinforced Lin-Kernighan-Helsgaun Algorithms for the Traveling Salesman Problems

Chu-Min Li, Jianrong Zhou, Jiongzhi Zheng, Kun He, Yan Jin

arxiv:2207.03876 v2 · 2022-07-08 · cs.AI · 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{DHVC2HH7T4AW33W6EUZJSCV52N}

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	2026-07-05T04:40:28.279370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19ea2d1cff9f016deede2532990abdd35d020846c69a50406ac68ae6472e050c

Aliases

arxiv: 2207.03876 · arxiv_version: 2207.03876v2 · doi: 10.48550/arxiv.2207.03876 · pith_short_12: DHVC2HH7T4AW · pith_short_16: DHVC2HH7T4AW33W6 · pith_short_8: DHVC2HH7

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/DHVC2HH7T4AW33W6EUZJSCV52N \
  | 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: 19ea2d1cff9f016deede2532990abdd35d020846c69a50406ac68ae6472e050c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8e6bbe3f81ebc5a6da7982ddfea3826c391c8c114f4b22c281ba1268a636700",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2022-07-08T13:03:29Z",
    "title_canon_sha256": "887d841fcc1034a51a5290032b58e030304c0e7a97f8b441b0e30a38cbffdce5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.03876",
    "kind": "arxiv",
    "version": 2
  }
}