Pith Number

pith:QQCJTYZX

pith:2019:QQCJTYZXURF6VDY2SFQGLNVR2A

not attested not anchored not stored refs pending

Deep Tree Learning for Zero-shot Face Anti-Spoofing

Amin Jourabloo, Joel Stehouwer, Xiaoming Liu, Yaojie Liu

arxiv:1904.02860 v2 · 2019-04-05 · 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{QQCJTYZXURF6VDY2SFQGLNVR2A}

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	2026-05-17T23:48:59.614721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840499e337a44bea8f1a916065b6b1d02a065927a4615227e370b261de02978d

Aliases

arxiv: 1904.02860 · arxiv_version: 1904.02860v2 · doi: 10.48550/arxiv.1904.02860 · pith_short_12: QQCJTYZXURF6 · pith_short_16: QQCJTYZXURF6VDY2 · pith_short_8: QQCJTYZX

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/QQCJTYZXURF6VDY2SFQGLNVR2A \
  | 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: 840499e337a44bea8f1a916065b6b1d02a065927a4615227e370b261de02978d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdc1b094adfefe63f8f1707926431594e4f46ff7a89ef0f290abe44c63dccfc2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-05T03:23:16Z",
    "title_canon_sha256": "63a10ac153f5a3f4f72fc94811ba9cd6e88bc78f491861a1de0c235b09e54e9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02860",
    "kind": "arxiv",
    "version": 2
  }
}