Pith Number

pith:BPCPIW5N

pith:2012:BPCPIW5NZU5EFGCDLWPK52ZFGZ

not attested not anchored not stored refs pending

Solving Large-Scale Optimization Problems Related to Bell's Theorem

Jacek A. Gruca, Jacek Gondzio, J. A. Julian Hall, Marek \.Zukowski, Wies{\l}aw Laskowski

arxiv:1204.3587 v3 · 2012-04-16 · quant-ph · math.OC · 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{BPCPIW5NZU5EFGCDLWPK52ZFGZ}

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	2026-05-18T03:01:47.139430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bc4f45badcd3a4298435d9eaeeb253652dd8da0d6a6497de716efbaea23edaf

Aliases

arxiv: 1204.3587 · arxiv_version: 1204.3587v3 · doi: 10.48550/arxiv.1204.3587 · pith_short_12: BPCPIW5NZU5E · pith_short_16: BPCPIW5NZU5EFGCD · pith_short_8: BPCPIW5N

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/BPCPIW5NZU5EFGCDLWPK52ZFGZ \
  | 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: 0bc4f45badcd3a4298435d9eaeeb253652dd8da0d6a6497de716efbaea23edaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1d7f0bf09de9c2238ba7e69b5daa68eca51c5a941d67680c2cbc0a45082733b",
    "cross_cats_sorted": [
      "math.OC",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-16T18:05:28Z",
    "title_canon_sha256": "b04a741e34efb4d718a9a706eff6df35dd547de8ec5ef5f0f15daf8d9e8b873c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3587",
    "kind": "arxiv",
    "version": 3
  }
}