Pith Number

pith:EOHEY2VR

pith:2025:EOHEY2VRHWKM6UCH3KVE4RCYKT

not attested not anchored not stored refs pending

Quantum-Assisted Recursive Algorithm for Solving the Exact Cover Problem

Bing-Jie Xu, Fei Gao, Jia-Cheng Fan, Ling-Xiao Li, Su-Juan Qin, Wei-Huang, Xiao-Hui Ni, Zi-Wen Huang

arxiv:2509.10811 v1 · 2025-09-13 · 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{EOHEY2VRHWKM6UCH3KVE4RCYKT}

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	2026-07-05T12:11:28.513002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

238e4c6ab13d94cf5047daaa4e445854ff2844d7c2b71bbb0f0e76c1c573649b

Aliases

arxiv: 2509.10811 · arxiv_version: 2509.10811v1 · doi: 10.48550/arxiv.2509.10811 · pith_short_12: EOHEY2VRHWKM · pith_short_16: EOHEY2VRHWKM6UCH · pith_short_8: EOHEY2VR

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/EOHEY2VRHWKM6UCH3KVE4RCYKT \
  | 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: 238e4c6ab13d94cf5047daaa4e445854ff2844d7c2b71bbb0f0e76c1c573649b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9505f58dd7a44db87290ba0a5b4601f2b2f718445894271a6e9b6939a3c78cc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-09-13T13:03:28Z",
    "title_canon_sha256": "7924ee3a0994730f391230950424c8a1f395926e16c11e41ee814b265ca105f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.10811",
    "kind": "arxiv",
    "version": 1
  }
}