Pith Number

pith:2APHQAWD

pith:2022:2APHQAWDKOFHM67X4LLR2AO7KM

not attested not anchored not stored refs pending

Combining Reinforcement Learning and Optimal Transport for the Traveling Salesman Problem

Nicholas Lim, Thomas Laurent, Wee Sun Lee, Xavier Bresson, Yong Liang Goh

arxiv:2203.00903 v1 · 2022-03-02 · cs.LG · cs.AI · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2APHQAWDKOFHM67X4LLR2AO7KM}

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	2026-07-05T09:58:15.218124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d01e7802c3538a767bf7e2d71d01df5301a3409de6c9a42d3716726c1ae3b694

Aliases

arxiv: 2203.00903 · arxiv_version: 2203.00903v1 · doi: 10.48550/arxiv.2203.00903 · pith_short_12: 2APHQAWDKOFH · pith_short_16: 2APHQAWDKOFHM67X · pith_short_8: 2APHQAWD

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/2APHQAWDKOFHM67X4LLR2AO7KM \
  | 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: d01e7802c3538a767bf7e2d71d01df5301a3409de6c9a42d3716726c1ae3b694

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66ffa454c2e1df6e29d7d689a5318b6379144ebdba158da5cd24aa2c6a2345cc",
    "cross_cats_sorted": [
      "cs.AI",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-03-02T07:21:56Z",
    "title_canon_sha256": "cb36af80f272776bab7221a22941375153edd1a45150f1fa894056761727b2bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.00903",
    "kind": "arxiv",
    "version": 1
  }
}