Pith Number

pith:QQDSDS5B

pith:2025:QQDSDS5BTSIWI34ZBL435ZWI3O

not attested not anchored not stored refs pending

Are Foundation Models All You Need for Zero-shot Face Presentation Attack Detection?

Christoph Busch, Juan E. Tapia, Lazaro Janier Gonzalez-Sole

arxiv:2507.16393 v1 · 2025-07-22 · 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{QQDSDS5BTSIWI34ZBL435ZWI3O}

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	2026-07-05T11:41:08.686463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

840721cba19c91646f990af9bee6c8db83a502655cd74bea0c4abc7f9c2c28a9

Aliases

arxiv: 2507.16393 · arxiv_version: 2507.16393v1 · doi: 10.48550/arxiv.2507.16393 · pith_short_12: QQDSDS5BTSIW · pith_short_16: QQDSDS5BTSIWI34Z · pith_short_8: QQDSDS5B

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/QQDSDS5BTSIWI34ZBL435ZWI3O \
  | 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: 840721cba19c91646f990af9bee6c8db83a502655cd74bea0c4abc7f9c2c28a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de7ebb39d0717e136558a8b1c06a64fca531d43afeac113257cb33674a085b16",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-07-22T09:38:21Z",
    "title_canon_sha256": "1f69ed240d3ddd58885f3a86d60fd144068ac90f4251b44de04ac8dab4b43b09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.16393",
    "kind": "arxiv",
    "version": 1
  }
}