Pith Number

pith:ZV63GT5D

pith:2019:ZV63GT5DB5SKVIRXMHCZOW46P4

not attested not anchored not stored refs pending

RoPAD: Robust Presentation Attack Detection through Unsupervised Adversarial Invariance

Ayush Jaiswal, Iacopo Masi, Shuai Xia, Wael AbdAlmageed

arxiv:1903.03691 v2 · 2019-03-08 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZV63GT5DB5SKVIRXMHCZOW46P4}

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	2026-05-17T23:50:44.465649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd7db34fa30f64aaa23761c5975b9e7f06c1ed46fbfc54536d4ff2e76a419605

Aliases

arxiv: 1903.03691 · arxiv_version: 1903.03691v2 · doi: 10.48550/arxiv.1903.03691 · pith_short_12: ZV63GT5DB5SK · pith_short_16: ZV63GT5DB5SKVIRX · pith_short_8: ZV63GT5D

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/ZV63GT5DB5SKVIRXMHCZOW46P4 \
  | 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: cd7db34fa30f64aaa23761c5975b9e7f06c1ed46fbfc54536d4ff2e76a419605

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aac6ab5df56bba27bdf5648c6f253e6d629870daff66f20da522394197fb4087",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-08T22:43:01Z",
    "title_canon_sha256": "49625bb3b03b36d3ddc08507526664f78de6831d1068176976c1c8519b7d78e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03691",
    "kind": "arxiv",
    "version": 2
  }
}