Pith Number

pith:QPUB3EGO

pith:2019:QPUB3EGOK576SJM5MMTGSGXQO5

not attested not anchored not stored refs pending

Learning Generalizable and Identity-Discriminative Representations for Face Anti-Spoofing

Guodong Du, Hengsheng Zhang, Jianshu Li, Jian Zhao, Jiashi Feng, Mei Xie, Xiaoguang Tu, Zheng Ma

arxiv:1901.05602 v1 · 2019-01-17 · 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{QPUB3EGOK576SJM5MMTGSGXQO5}

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	2026-05-17T23:56:06.676993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e81d90ce577fe9259d6326691af0777eb2c3ac5a5dc36cc89229f323b2b8ea

Aliases

arxiv: 1901.05602 · arxiv_version: 1901.05602v1 · doi: 10.48550/arxiv.1901.05602 · pith_short_12: QPUB3EGOK576 · pith_short_16: QPUB3EGOK576SJM5 · pith_short_8: QPUB3EGO

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/QPUB3EGOK576SJM5MMTGSGXQO5 \
  | 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: 83e81d90ce577fe9259d6326691af0777eb2c3ac5a5dc36cc89229f323b2b8ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "604f525a0de364c2501edd0118bb722b54b6dd4c2e65cbadf4110e82a409f15a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-17T03:24:52Z",
    "title_canon_sha256": "b4972f3d12d6ceb90371e6298691e6ae57bbcc9ac4ef79680b19d66fffe6dddc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05602",
    "kind": "arxiv",
    "version": 1
  }
}