Pith Number

pith:5Z76P7RL

pith:2018:5Z76P7RLB3QFBAZUQN5PQFGFDG

not attested not anchored not stored refs pending

Cancelable Indexing Based on Low-rank Approximation of Correlation-invariant Random Filtering for Fast and Secure Biometric Identification

Kenta Takahashi, Masakazu Fujio, Takao Murakami, Tetsushi Ohki, Yosuke Kaga

arxiv:1804.01670 v1 · 2018-04-05 · 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{5Z76P7RLB3QFBAZUQN5PQFGFDG}

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	2026-05-18T00:19:10.450684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee7fe7fe2b0ee0508334837af814c519a931fd9e771735a8c7671d3218b53f43

Aliases

arxiv: 1804.01670 · arxiv_version: 1804.01670v1 · doi: 10.48550/arxiv.1804.01670 · pith_short_12: 5Z76P7RLB3QF · pith_short_16: 5Z76P7RLB3QFBAZU · pith_short_8: 5Z76P7RL

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/5Z76P7RLB3QFBAZUQN5PQFGFDG \
  | 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: ee7fe7fe2b0ee0508334837af814c519a931fd9e771735a8c7671d3218b53f43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ce563eae52debad111a0a51e5fefaa064fcb6fbd74308ddfb35718b2fe6d7f4",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-05T04:56:44Z",
    "title_canon_sha256": "03e6049da6f37d2d4a4df56ebdaf3cee4cce4942bdad634c26197901c4f21e30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.01670",
    "kind": "arxiv",
    "version": 1
  }
}