Pith Number

pith:Y4IZ44XE

pith:2022:Y4IZ44XETUO5KRAYOF54YQPNIG

not attested not anchored not stored refs pending

Twisted hybrid algorithms for combinatorial optimization

Alexander Kliesch, Libor Caha, Robert Koenig

arxiv:2203.00717 v1 · 2022-03-01 · quant-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{Y4IZ44XETUO5KRAYOF54YQPNIG}

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	2026-07-05T04:51:06.852957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7119e72e49d1dd54418717bcc41ed419d6f21adb0a350d9dc35a495347c5360

Aliases

arxiv: 2203.00717 · arxiv_version: 2203.00717v1 · doi: 10.48550/arxiv.2203.00717 · pith_short_12: Y4IZ44XETUO5 · pith_short_16: Y4IZ44XETUO5KRAY · pith_short_8: Y4IZ44XE

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/Y4IZ44XETUO5KRAYOF54YQPNIG \
  | 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: c7119e72e49d1dd54418717bcc41ed419d6f21adb0a350d9dc35a495347c5360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "810049b090e5ad64619e1b8c1411615eec40979e9501530086b52a2de71a4734",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-03-01T19:47:16Z",
    "title_canon_sha256": "ee781c0cd52b2ed3d92418a5436e662a343f8f74d9aa38c9b1106438e60cf9e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.00717",
    "kind": "arxiv",
    "version": 1
  }
}