Pith Number

pith:CXEJGPUL

pith:2012:CXEJGPULR3RBEZM5ZWNKZTE7VJ

not attested not anchored not stored refs pending

Quantum XOR Games

Oded Regev, Thomas Vidick

arxiv:1207.4939 v1 · 2012-07-20 · quant-ph · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CXEJGPULR3RBEZM5ZWNKZTE7VJ}

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	2026-05-18T03:50:34.757950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c8933e8b8ee212659dcd9aaccc9faa6cb3b0f44ff602fcb72e47d18dc95417

Aliases

arxiv: 1207.4939 · arxiv_version: 1207.4939v1 · doi: 10.48550/arxiv.1207.4939 · pith_short_12: CXEJGPULR3RB · pith_short_16: CXEJGPULR3RBEZM5 · pith_short_8: CXEJGPUL

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/CXEJGPULR3RBEZM5ZWNKZTE7VJ \
  | 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: 15c8933e8b8ee212659dcd9aaccc9faa6cb3b0f44ff602fcb72e47d18dc95417

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b34d2501d53f2a28bdd3d865949f36c3efea895402b5c0d03c6eb2aedc1f840",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-20T12:40:51Z",
    "title_canon_sha256": "cf4a3de95903692703084c83605858f2de1079b8133f783dbe4859158028ae38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4939",
    "kind": "arxiv",
    "version": 1
  }
}