Pith Number

pith:DBDVOR6H

pith:2021:DBDVOR6HDHLHHJGQ27E7TRHCP7

not attested not anchored not stored refs pending

Disentangled Representation with Dual-stage Feature Learning for Face Anti-spoofing

Chien-Yi Wang, Shang-Hong Lai, Yu-Chun Wang

arxiv:2110.09157 v1 · 2021-10-18 · 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{DBDVOR6HDHLHHJGQ27E7TRHCP7}

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	2026-07-05T03:23:24.953660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18475747c719d673a4d0d7c9f9c4e27fcbb4f82e0d421954f852e74fdc372d20

Aliases

arxiv: 2110.09157 · arxiv_version: 2110.09157v1 · doi: 10.48550/arxiv.2110.09157 · pith_short_12: DBDVOR6HDHLH · pith_short_16: DBDVOR6HDHLHHJGQ · pith_short_8: DBDVOR6H

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/DBDVOR6HDHLHHJGQ27E7TRHCP7 \
  | 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: 18475747c719d673a4d0d7c9f9c4e27fcbb4f82e0d421954f852e74fdc372d20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4b3632537a4d331341ac7aea2be9ce74d4e16a7231c7e6d32e10f68eab3b3cb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-10-18T10:22:52Z",
    "title_canon_sha256": "39eb7a2d684ac36982ce6aec6fa6a54b37225f919951c1493d6c9fe5367e33cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.09157",
    "kind": "arxiv",
    "version": 1
  }
}