Pith Number

pith:BBV434B5

pith:2022:BBV434B5PQXY7WMEEELEUD25TD

not attested not anchored not stored refs pending

Efficient Strong Privacy-Preserving Conjunctive Keyword Search Over Encrypted Cloud Data

Chang Xu, Chuan Zhang, Kashif Sharif, Liehuang Zhu, Rongxing Lu, Ruijuan Wang

arxiv:2203.13662 v2 · 2022-03-25 · 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{BBV434B5PQXY7WMEEELEUD25TD}

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	2026-07-05T05:00:00.020702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

086bcdf03d7c2f8fd98421164a0f5d98d86e981e17d7fc16ab84b8999d62aa78

Aliases

arxiv: 2203.13662 · arxiv_version: 2203.13662v2 · doi: 10.48550/arxiv.2203.13662 · pith_short_12: BBV434B5PQXY · pith_short_16: BBV434B5PQXY7WME · pith_short_8: BBV434B5

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/BBV434B5PQXY7WMEEELEUD25TD \
  | 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: 086bcdf03d7c2f8fd98421164a0f5d98d86e981e17d7fc16ab84b8999d62aa78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68e84409f103835a824b93c5cb2f70ccca7629e7e9e4415a5b6dd4e34e2da282",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2022-03-25T14:14:28Z",
    "title_canon_sha256": "b4d3bb7f0ce06a34152ea12ec417b61f7744dc60042449b5cb6a34a09830587e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.13662",
    "kind": "arxiv",
    "version": 2
  }
}