Pith Number

pith:PQCNQ42Y

pith:2021:PQCNQ42YX4TW72HZR7GU3TYLFN

not attested not anchored not stored refs pending

Matrix Encoding Networks for Neural Combinatorial Optimization

Duwon Park, Iljoo Yoon, Jinho Choo, Minah Park, Yeong-Dae Kwon, Youngjune Gwon

arxiv:2106.11113 v2 · 2021-06-21 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQCNQ42YX4TW72HZR7GU3TYLFN}

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	2026-07-05T03:25:32.421436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c04d87358bf276fe8f98fcd4dcf0b2b42f6d3f04c1a71cfc6eeed94d3deb3dd

Aliases

arxiv: 2106.11113 · arxiv_version: 2106.11113v2 · doi: 10.48550/arxiv.2106.11113 · pith_short_12: PQCNQ42YX4TW · pith_short_16: PQCNQ42YX4TW72HZ · pith_short_8: PQCNQ42Y

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/PQCNQ42YX4TW72HZR7GU3TYLFN \
  | 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: 7c04d87358bf276fe8f98fcd4dcf0b2b42f6d3f04c1a71cfc6eeed94d3deb3dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "962cff5e65a91932d60a1077ae9c393c6ab29448dfdcdcb75e004d1f01a4a151",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-06-21T13:50:23Z",
    "title_canon_sha256": "c66c723318d762ec5c9802d2b63c3ea5dbc959db6c1924301a9438bd6c1e0b63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.11113",
    "kind": "arxiv",
    "version": 2
  }
}