Pith Number

pith:BQPTO7GA

pith:2019:BQPTO7GA7CT2XI3SSUBB7VUVKS

not attested not anchored not stored refs pending

Deep Pixel-wise Binary Supervision for Face Presentation Attack Detection

Anjith George, Sebastien Marcel

arxiv:1907.04047 v1 · 2019-07-09 · cs.CV · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQPTO7GA7CT2XI3SSUBB7VUVKS}

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	2026-05-17T23:41:05.859588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1f377cc0f8a7aba37295021fd695548ca83c1d368c66529b5c5b41e786cf4c

Aliases

arxiv: 1907.04047 · arxiv_version: 1907.04047v1 · doi: 10.48550/arxiv.1907.04047 · pith_short_12: BQPTO7GA7CT2 · pith_short_16: BQPTO7GA7CT2XI3S · pith_short_8: BQPTO7GA

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/BQPTO7GA7CT2XI3SSUBB7VUVKS \
  | 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: 0c1f377cc0f8a7aba37295021fd695548ca83c1d368c66529b5c5b41e786cf4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e93a0c0e520ee4d0634971706ffe5e0f63eb7d1886667031f66e0ff6afeb376a",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-07-09T08:45:33Z",
    "title_canon_sha256": "704a09d68f9b979ca593867b227116f01ad37dc8a8805ffd779559b7dcf1439b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04047",
    "kind": "arxiv",
    "version": 1
  }
}