Pith Number

pith:2BH2I2VL

pith:2017:2BH2I2VL5WE3JN4IT3JM7EC7Y3

not attested not anchored not stored refs pending

Privacy Preserving Face Retrieval in the Cloud for Mobile Users

Chenggen Song, Shiming Ge, Xin Jin

arxiv:1708.02872 v1 · 2017-08-09 · 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{2BH2I2VL5WE3JN4IT3JM7EC7Y3}

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	2026-05-18T00:38:19.247037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d04fa46aabed89b4b7889ed2cf905fc6c476f11f504b7ec855b1bfa0627fea73

Aliases

arxiv: 1708.02872 · arxiv_version: 1708.02872v1 · doi: 10.48550/arxiv.1708.02872 · pith_short_12: 2BH2I2VL5WE3 · pith_short_16: 2BH2I2VL5WE3JN4I · pith_short_8: 2BH2I2VL

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/2BH2I2VL5WE3JN4IT3JM7EC7Y3 \
  | 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: d04fa46aabed89b4b7889ed2cf905fc6c476f11f504b7ec855b1bfa0627fea73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dec9a3ee7124cbc17acd4a5ac2f9a684a5b25e07580fd3abed177f36cf00abf9",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-08-09T15:21:42Z",
    "title_canon_sha256": "b29315547e2b942fc4f819e89f4072aeed1ee20122a45a9e1abc76293e65742b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02872",
    "kind": "arxiv",
    "version": 1
  }
}