Pith Number

pith:SKZBUDO3

pith:2015:SKZBUDO35RROFJLWUIB3U5SWVU

not attested not anchored not stored refs pending

A Linear Time Algorithm for the $3$-neighbour Traveling Salesman Problem on Halin graphs and extensions

Abraham Punnen, Brad Woods, Tamon Stephen

arxiv:1504.02151 v5 · 2015-04-08 · 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{SKZBUDO35RROFJLWUIB3U5SWVU}

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	2026-05-18T00:36:10.141177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92b21a0ddbec62e2a576a203ba7656ad3337a10e896dfdd0c1dce1a7fd0dfce2

Aliases

arxiv: 1504.02151 · arxiv_version: 1504.02151v5 · doi: 10.48550/arxiv.1504.02151 · pith_short_12: SKZBUDO35RRO · pith_short_16: SKZBUDO35RROFJLW · pith_short_8: SKZBUDO3

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/SKZBUDO35RROFJLWUIB3U5SWVU \
  | 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: 92b21a0ddbec62e2a576a203ba7656ad3337a10e896dfdd0c1dce1a7fd0dfce2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c5725a34e57ec829fa9eb17ced88c1e0da7761ec9b53e1aae811320d43f9ce5",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-04-08T22:48:21Z",
    "title_canon_sha256": "3524f5103ced148e2212f8a86c88e7244d8ca7aeab01c761c86c5f0316326a39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02151",
    "kind": "arxiv",
    "version": 5
  }
}