Pith Number

pith:QP5LDTPM

pith:2019:QP5LDTPM4Y7UZTGQVOLRZSE3KW

not attested not anchored not stored refs pending

A Deep, Information-theoretic Framework for Robust Biometric Recognition

Qiao Wang, Renjie Xie, Yan Wo, Yanzhi Chen

arxiv:1902.08785 v1 · 2019-02-23 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QP5LDTPM4Y7UZTGQVOLRZSE3KW}

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	2026-05-17T23:52:49.939114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83fab1cdece63f4cccd0ab971cc89b55934d6204a66d95ce6db0fc85e5d2addd

Aliases

arxiv: 1902.08785 · arxiv_version: 1902.08785v1 · doi: 10.48550/arxiv.1902.08785 · pith_short_12: QP5LDTPM4Y7U · pith_short_16: QP5LDTPM4Y7UZTGQ · pith_short_8: QP5LDTPM

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/QP5LDTPM4Y7UZTGQVOLRZSE3KW \
  | 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: 83fab1cdece63f4cccd0ab971cc89b55934d6204a66d95ce6db0fc85e5d2addd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69b058f58b36ced69189a55a5cb53fe2d78e500f956e93232f917e401162c8a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-02-23T12:26:13Z",
    "title_canon_sha256": "863ec4c3800df3c6258c34777097b10834444659ec75f76f6e256f1ac8a305ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08785",
    "kind": "arxiv",
    "version": 1
  }
}