Pith Number

pith:ZTN6OWD2

pith:2023:ZTN6OWD2UTAQXHOPERQFB33OEZ

not attested not anchored not stored refs pending

Learning to Branch in Combinatorial Optimization with Graph Pointer Networks

Kaiwen Li, Ling Wang, Rui Wang, Tao Zhang, Xiangke Liao, Xin Xu, Zhiming Zhou

arxiv:2307.01434 v1 · 2023-07-04 · cs.LG · cs.NE · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTN6OWD2UTAQXHOPERQFB33OEZ}

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	2026-07-05T06:27:56.450518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccdbe7587aa4c10b9dcf246050ef6e26604c75eeb243fc47a8fb50a6003e6b50

Aliases

arxiv: 2307.01434 · arxiv_version: 2307.01434v1 · doi: 10.48550/arxiv.2307.01434 · pith_short_12: ZTN6OWD2UTAQ · pith_short_16: ZTN6OWD2UTAQXHOP · pith_short_8: ZTN6OWD2

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/ZTN6OWD2UTAQXHOPERQFB33OEZ \
  | 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: ccdbe7587aa4c10b9dcf246050ef6e26604c75eeb243fc47a8fb50a6003e6b50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b6543246aa9161b54925f6976f42b0f9374ed07539f00371adfbd8d752d9914",
    "cross_cats_sorted": [
      "cs.NE",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-07-04T01:56:07Z",
    "title_canon_sha256": "6fe355105b922688bd0a565badafc13fe62e6d1ba8cd296604492c33071ca237"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.01434",
    "kind": "arxiv",
    "version": 1
  }
}