Pith Number

pith:2AHYOT2Z

pith:2019:2AHYOT2ZGURD5BY3KAOX4M2IXC

not attested not anchored not stored refs pending

Learning deep forest with multi-scale Local Binary Pattern features for face anti-spoofing

Changsheng Chen, Rizhao Cai

arxiv:1910.03850 v1 · 2019-10-09 · 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{2AHYOT2ZGURD5BY3KAOX4M2IXC}

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	2026-07-05T00:10:58.704269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d00f874f5935223e871b501d7e3348b8a8ceb40bdd1c46aed027aab1a439d590

Aliases

arxiv: 1910.03850 · arxiv_version: 1910.03850v1 · doi: 10.48550/arxiv.1910.03850 · pith_short_12: 2AHYOT2ZGURD · pith_short_16: 2AHYOT2ZGURD5BY3 · pith_short_8: 2AHYOT2Z

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/2AHYOT2ZGURD5BY3KAOX4M2IXC \
  | 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: d00f874f5935223e871b501d7e3348b8a8ceb40bdd1c46aed027aab1a439d590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "686d5ebb860dda9a860b4bea4dcc7172c3f98a3bc691ebf4cd4f095622946f35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-10-09T08:57:10Z",
    "title_canon_sha256": "a0f488e1e0f0a163417c71395bd9b0e0a4cc67bc2bdf5d4e81353129037bb2fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03850",
    "kind": "arxiv",
    "version": 1
  }
}