Pith Number

pith:3H7QLEXS

pith:2019:3H7QLEXSTCT3MJVJALVJZQJSWY

not attested not anchored not stored refs pending

Multilevel Combinatorial Optimization Across Quantum Architectures

Christian F. A. Negre, Hayato Ushijima-Mwesigwa, Ilya Safro, Ruslan Shaydulin, Susan M. Mniszewski, Yuri Alexeev

arxiv:1910.09985 v5 · 2019-10-22 · quant-ph · cs.DS · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3H7QLEXSTCT3MJVJALVJZQJSWY}

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	2026-07-05T04:31:55.207128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9ff0592f298a7b626a902ea9cc132b619be2002f7e8cebe3889e4c1198d9d39

Aliases

arxiv: 1910.09985 · arxiv_version: 1910.09985v5 · doi: 10.48550/arxiv.1910.09985 · pith_short_12: 3H7QLEXSTCT3 · pith_short_16: 3H7QLEXSTCT3MJVJ · pith_short_8: 3H7QLEXS

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/3H7QLEXSTCT3MJVJALVJZQJSWY \
  | 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: d9ff0592f298a7b626a902ea9cc132b619be2002f7e8cebe3889e4c1198d9d39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e676b70b8cb5d9523ee4b97bb64e319d966128fd97ed309bd2efa87459c2410f",
    "cross_cats_sorted": [
      "cs.DS",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-10-22T13:56:43Z",
    "title_canon_sha256": "d47237e0977a7995b21d57425c8c7786b9eed4dd4bf7b8578d4780773b1e99ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.09985",
    "kind": "arxiv",
    "version": 5
  }
}