Pith Number

pith:2IQ2ZJ2H

pith:2025:2IQ2ZJ2HVAFSYX6PSVLH5FNV7U

not attested not anchored not stored refs pending

A Classical Quadratic Speedup for Planted $k$XOR

Meghal Gupta, Noah G. Singer, Ryan O'Donnell, William He

arxiv:2508.09422 v1 · 2025-08-13 · cs.DS · cs.CR · 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{2IQ2ZJ2HVAFSYX6PSVLH5FNV7U}

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	2026-07-05T11:53:51.018067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d221aca747a80b2c5fcf95567e95b5fd284a8a73e9cde29f7ddb8b4bbaeb1a60

Aliases

arxiv: 2508.09422 · arxiv_version: 2508.09422v1 · doi: 10.48550/arxiv.2508.09422 · pith_short_12: 2IQ2ZJ2HVAFS · pith_short_16: 2IQ2ZJ2HVAFSYX6P · pith_short_8: 2IQ2ZJ2H

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/2IQ2ZJ2HVAFSYX6PSVLH5FNV7U \
  | 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: d221aca747a80b2c5fcf95567e95b5fd284a8a73e9cde29f7ddb8b4bbaeb1a60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a2a857374f4afc45338e1797595fa4a55a525eb26f826cb9b43a31f06c71de0",
    "cross_cats_sorted": [
      "cs.CR",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-08-13T01:45:47Z",
    "title_canon_sha256": "eef1dfe5e1d093c358118671bf4b25f8e623f51a14ebc4a5babd425bfaf4b42d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.09422",
    "kind": "arxiv",
    "version": 1
  }
}