Pith Number

pith:OP2AKFI4

pith:2018:OP2AKFI4HZZJA4JKJSMPJR3KUX

not attested not anchored not stored refs pending

Solving the clustered traveling salesman problem with d-relaxed priority rule

Andr\'e Langevin, Hoa Nguyen Phuong, Huyen Tran Ngoc Nhat, Martin Tr\'epanier, Minh Ho\`ang H\`a

arxiv:1810.03981 v1 · 2018-10-06 · 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{OP2AKFI4HZZJA4JKJSMPJR3KUX}

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	2026-05-18T00:03:44.146041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73f405151c3e7290712a4c98f4c76aa5f8e9d35f8e560fa5a5dd2397cf3d869c

Aliases

arxiv: 1810.03981 · arxiv_version: 1810.03981v1 · doi: 10.48550/arxiv.1810.03981 · pith_short_12: OP2AKFI4HZZJ · pith_short_16: OP2AKFI4HZZJA4JK · pith_short_8: OP2AKFI4

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/OP2AKFI4HZZJA4JKJSMPJR3KUX \
  | 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: 73f405151c3e7290712a4c98f4c76aa5f8e9d35f8e560fa5a5dd2397cf3d869c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "695729449c062bbc7bef68a7497cd76aeb8553e58d9d33f0fc9b8455abf10f9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-10-06T17:24:11Z",
    "title_canon_sha256": "b14ee85107634bf19b5a01408dce72872a27c7a0af28ab844646717256719f75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.03981",
    "kind": "arxiv",
    "version": 1
  }
}