Pith Number

pith:4BGIBNGA

pith:2021:4BGIBNGASJ6WU6BUOVEOO7CG2D

not attested not anchored not stored refs pending

Masked Face Recognition: Human vs. Machine

Arjan Kuijper, Fadi Boutros, Florian Kirchbuchner, Marius S\"u{\ss}milch, Meiling Fang, Naser Damer

arxiv:2103.01924 v3 · 2021-03-02 · cs.CV · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4BGIBNGASJ6WU6BUOVEOO7CG2D}

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	2026-07-05T04:17:13.963580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e04c80b4c0927d6a78347548e77c46d0e30a3d3e28499e6d2b8adf1e194878b0

Aliases

arxiv: 2103.01924 · arxiv_version: 2103.01924v3 · doi: 10.48550/arxiv.2103.01924 · pith_short_12: 4BGIBNGASJ6W · pith_short_16: 4BGIBNGASJ6WU6BU · pith_short_8: 4BGIBNGA

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/4BGIBNGASJ6WU6BUOVEOO7CG2D \
  | 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: e04c80b4c0927d6a78347548e77c46d0e30a3d3e28499e6d2b8adf1e194878b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c0e28f295b70756ae3e2f778bfbb76d5ef9c73d2b45c3a9e4ae7cf55c6f687c",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-03-02T18:36:01Z",
    "title_canon_sha256": "1baf165dc0356fed462b9e3f3ed3d1f7aa5705c48bcd95406640e4b181119fc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.01924",
    "kind": "arxiv",
    "version": 3
  }
}