Pith Number

pith:CKEX7ET4

pith:2025:CKEX7ET43O4ILAILKGZBVZM4CD

not attested not anchored not stored refs pending

Authenticated Sublinear Quantum Private Information Retrieval

Fengxia Liu, Heng Guo, Kun Tian, Oleksiy Zhedanov, Yi Zhang, Zhe Hu, Zhiyong Zheng, Zixian Gong

arxiv:2504.04041 v3 · 2025-04-05 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CKEX7ET43O4ILAILKGZBVZM4CD}

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	2026-07-05T11:43:31.593950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12897f927cdbb885810b51b21ae59c10d70b5b129eeccca3f71cb702b50c0b5b

Aliases

arxiv: 2504.04041 · arxiv_version: 2504.04041v3 · doi: 10.48550/arxiv.2504.04041 · pith_short_12: CKEX7ET43O4I · pith_short_16: CKEX7ET43O4ILAIL · pith_short_8: CKEX7ET4

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/CKEX7ET43O4ILAILKGZBVZM4CD \
  | 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: 12897f927cdbb885810b51b21ae59c10d70b5b129eeccca3f71cb702b50c0b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4cce8262813b8452e289a90d3a6ef57e8d705c16c0305ef3b809004c0a9b68ac",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-04-05T03:30:04Z",
    "title_canon_sha256": "cb159a5e5b6845a6fcc27eb388c8376e4320a2bae21d712fb98712ac0c0c0557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.04041",
    "kind": "arxiv",
    "version": 3
  }
}