Pith Number

pith:PO3GQPBH

pith:2019:PO3GQPBHPVAGASOSRLBCI6APKB

not attested not anchored not stored refs pending

3D Face Mask Presentation Attack Detection Based on Intrinsic Image Analysis

Fabio Roli, Lei Li, Xiaoyi Feng, Xiaoyue Jiang, Yupeng Ma, Zhaoqiang Xia

arxiv:1903.11303 v1 · 2019-03-27 · 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{PO3GQPBHPVAGASOSRLBCI6APKB}

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	2026-05-17T23:50:03.626646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bb6683c277d406049d28ac224780f506ac59978cdd51fb59f3d60282cf8cce5

Aliases

arxiv: 1903.11303 · arxiv_version: 1903.11303v1 · doi: 10.48550/arxiv.1903.11303 · pith_short_12: PO3GQPBHPVAG · pith_short_16: PO3GQPBHPVAGASOS · pith_short_8: PO3GQPBH

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/PO3GQPBHPVAGASOSRLBCI6APKB \
  | 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: 7bb6683c277d406049d28ac224780f506ac59978cdd51fb59f3d60282cf8cce5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afa591feeafa392e9f000f02c39980f9e9ffa7224f458e79f36a37f9024d742b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-27T09:13:08Z",
    "title_canon_sha256": "716219446d6633967947dc2b9a97838036edb25fd19bf145384a3c40eaff9b6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.11303",
    "kind": "arxiv",
    "version": 1
  }
}