Pith Number

pith:56CK22RN

pith:2025:56CK22RNPJSYV2S4CKLM3L6PQL

not attested not anchored not stored refs pending

Evolving Hard Maximum Cut Instances for Quantum Approximate Optimization Algorithms

Aneta Neumann, Frank Neumann, Hao Wang, Shuaiqun Pan, Thomas B\"ack, Yash J. Patel

arxiv:2502.12012 v3 · 2025-01-30 · cs.ET · cs.AI · cs.NE · 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{56CK22RNPJSYV2S4CKLM3L6PQL}

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	2026-07-05T11:14:53.894681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef84ad6a2d7a658aea5c1296cdafcf82e9c56e6b8a69ef1d0b802f88d312a149

Aliases

arxiv: 2502.12012 · arxiv_version: 2502.12012v3 · doi: 10.48550/arxiv.2502.12012 · pith_short_12: 56CK22RNPJSY · pith_short_16: 56CK22RNPJSYV2S4 · pith_short_8: 56CK22RN

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/56CK22RNPJSYV2S4CKLM3L6PQL \
  | 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: ef84ad6a2d7a658aea5c1296cdafcf82e9c56e6b8a69ef1d0b802f88d312a149

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79c95cfaf9f17b5cf2aeb4bcdc7a5b3bcbe1e0c5e53343d2c21959a24c92f98c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NE",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.ET",
    "submitted_at": "2025-01-30T14:32:06Z",
    "title_canon_sha256": "1b42f184e8fa1b232fc5fec5a6616f18598894fbb2d8e51514ee2c801549ffe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.12012",
    "kind": "arxiv",
    "version": 3
  }
}