Pith Number

pith:TD4WQ5Y5

pith:2021:TD4WQ5Y5OPXUGAR74TFYA6L3IT

not attested not anchored not stored refs pending

Achieve Efficient Position-Heap-based Privacy-Preserving Substring-of-Keyword Query over Cloud

Fan Yin, Jun Shao, Rongxing Lu, Xiaohu Tang, Xue Yang, Yandong Zheng

arxiv:2103.08455 v1 · 2021-03-15 · 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{TD4WQ5Y5OPXUGAR74TFYA6L3IT}

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	2026-07-05T02:23:00.990681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98f968771d73ef43023fe4cb80797b44d9ee80982716e63f37261469712eafc0

Aliases

arxiv: 2103.08455 · arxiv_version: 2103.08455v1 · doi: 10.48550/arxiv.2103.08455 · pith_short_12: TD4WQ5Y5OPXU · pith_short_16: TD4WQ5Y5OPXUGAR7 · pith_short_8: TD4WQ5Y5

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/TD4WQ5Y5OPXUGAR74TFYA6L3IT \
  | 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: 98f968771d73ef43023fe4cb80797b44d9ee80982716e63f37261469712eafc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "373669f3a1c0943332527f99dd71a749bc9aa6a790d4f9781ea31596de798f86",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2021-03-15T15:28:20Z",
    "title_canon_sha256": "ccd92fb5286fc8a08ddb2b8d08bd301d3e324b95d259370eafa1cff5a0b77968"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08455",
    "kind": "arxiv",
    "version": 1
  }
}