Pith Number

pith:QVI5REO7

pith:2019:QVI5REO73KUATKCKMAZAH5W4JV

not attested not anchored not stored refs pending

Domain Agnostic Feature Learning for Image and Video Based Face Anti-spoofing

Danda Pani Paudel, Luc Van Gool, Menelaos Kanakis, Stamatios Georgoulis, Suman Saha, Wenhao Xu, Yuhua Chen

arxiv:1912.07124 v2 · 2019-12-15 · 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{QVI5REO73KUATKCKMAZAH5W4JV}

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	2026-07-05T00:54:31.710620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8551d891dfdaa809a84a603203f6dc4d7532a08f43060a3c93b37dfda45cfe0c

Aliases

arxiv: 1912.07124 · arxiv_version: 1912.07124v2 · doi: 10.48550/arxiv.1912.07124 · pith_short_12: QVI5REO73KUA · pith_short_16: QVI5REO73KUATKCK · pith_short_8: QVI5REO7

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/QVI5REO73KUATKCKMAZAH5W4JV \
  | 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: 8551d891dfdaa809a84a603203f6dc4d7532a08f43060a3c93b37dfda45cfe0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9e13e55ab99196c7d57b949f8d8506dcc192b7f9b9a259040b43613be6ee2d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-12-15T22:46:53Z",
    "title_canon_sha256": "df77ba42095af60cf5f0b75f4556c892677f42057d8116480bad80fed1c0bc81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.07124",
    "kind": "arxiv",
    "version": 2
  }
}