Pith Number

pith:XW4P6UIC

pith:2025:XW4P6UICSI5GDRZVHIVXSU6JO4

not attested not anchored not stored refs pending

Pura: An Efficient Privacy-Preserving Solution for Face Recognition

Bowen Zhao, Guotao Xu, Liang Zhai, Qingqi Pei, Yang Xiao, Yantao Zhong

arxiv:2505.15476 v1 · 2025-05-21 · cs.CV · 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{XW4P6UICSI5GDRZVHIVXSU6JO4}

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	2026-07-05T11:06:46.443680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdb8ff5102923a61c7353a2b7953c97707bcd212f9ec413eb5842f2fb2de6469

Aliases

arxiv: 2505.15476 · arxiv_version: 2505.15476v1 · doi: 10.48550/arxiv.2505.15476 · pith_short_12: XW4P6UICSI5G · pith_short_16: XW4P6UICSI5GDRZV · pith_short_8: XW4P6UIC

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/XW4P6UICSI5GDRZVHIVXSU6JO4 \
  | 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: bdb8ff5102923a61c7353a2b7953c97707bcd212f9ec413eb5842f2fb2de6469

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4070a1c2d50a3bf9a9acec9acc7ebcf508fd9f83944896ad2d4cc7348ee650b0",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-05-21T12:50:25Z",
    "title_canon_sha256": "4670ecb279265603ac0648a86bdc6571518caf3b795eec3de31de646919eb7df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.15476",
    "kind": "arxiv",
    "version": 1
  }
}