Pith Number

pith:VR2QZVOH

pith:2018:VR2QZVOHLXHXG2KEO6MHWO35QI

not attested not anchored not stored refs pending

A Performance Evaluation of Convolutional Neural Networks for Face Anti Spoofing

Chaitanya Nagpal, Shiv Ram Dubey

arxiv:1805.04176 v2 · 2018-05-08 · 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{VR2QZVOHLXHXG2KEO6MHWO35QI}

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	2026-05-17T23:50:07.323578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac750cd5c75dcf73694477987b3b7d820c4e78117d773429052a7f333ab82274

Aliases

arxiv: 1805.04176 · arxiv_version: 1805.04176v2 · doi: 10.48550/arxiv.1805.04176 · pith_short_12: VR2QZVOHLXHX · pith_short_16: VR2QZVOHLXHXG2KE · pith_short_8: VR2QZVOH

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/VR2QZVOHLXHXG2KEO6MHWO35QI \
  | 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: ac750cd5c75dcf73694477987b3b7d820c4e78117d773429052a7f333ab82274

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbed90ff021855421054f3749da94a9d8fa0a96c2f1c78910b4ccc474d24b10f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-05-08T01:34:59Z",
    "title_canon_sha256": "e3275ea7f58569a80e6fecdc5ae1f18f107f0fb5cdbb6ca9a7824c92a09efc3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04176",
    "kind": "arxiv",
    "version": 2
  }
}