Pith Number

pith:3FD4VBK7

pith:2021:3FD4VBK7FG53ZV3SIOGCTITTQL

not attested not anchored not stored refs pending

Boosting Masked Face Recognition with Multi-Task ArcFace

David Montero, Marcos Nieto, Naiara Aginako, Peter Leskovsky

arxiv:2104.09874 v2 · 2021-04-20 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3FD4VBK7FG53ZV3SIOGCTITTQL}

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	2026-07-05T02:33:59.472015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d947ca855f29bbbcd772438c29a27382c2f000e1a95d2bbe96fffba70d6652df

Aliases

arxiv: 2104.09874 · arxiv_version: 2104.09874v2 · doi: 10.48550/arxiv.2104.09874 · pith_short_12: 3FD4VBK7FG53 · pith_short_16: 3FD4VBK7FG53ZV3S · pith_short_8: 3FD4VBK7

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/3FD4VBK7FG53ZV3SIOGCTITTQL \
  | 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: d947ca855f29bbbcd772438c29a27382c2f000e1a95d2bbe96fffba70d6652df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7181c90831ee5a96f5ebcf4e2f7e142253d0ecb19e3b57a4e887c7dff03b0aa2",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-20T10:12:04Z",
    "title_canon_sha256": "875ae9d1f249b7d134d75192ab8530e7a640b236199635afaf7b5b23f2d5393d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.09874",
    "kind": "arxiv",
    "version": 2
  }
}