Pith Number

pith:GIRJPA6E

pith:2021:GIRJPA6EZDONXAK5FX3CS52DAX

not attested not anchored not stored refs pending

ElasticFace: Elastic Margin Loss for Deep Face Recognition

Arjan Kuijper, Fadi Boutros, Florian Kirchbuchner, Naser Damer

arxiv:2109.09416 v4 · 2021-09-20 · 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{GIRJPA6EZDONXAK5FX3CS52DAX}

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	2026-07-05T04:06:45.172862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32229783c4c8dcdb815d2df629774305ebbbc4a9aa2456283a01c4abb47e9f2f

Aliases

arxiv: 2109.09416 · arxiv_version: 2109.09416v4 · doi: 10.48550/arxiv.2109.09416 · pith_short_12: GIRJPA6EZDON · pith_short_16: GIRJPA6EZDONXAK5 · pith_short_8: GIRJPA6E

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/GIRJPA6EZDONXAK5FX3CS52DAX \
  | 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: 32229783c4c8dcdb815d2df629774305ebbbc4a9aa2456283a01c4abb47e9f2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa1f29a17fccd7223b4e414615b780f67cb0901bfcacdd8aa389bbcdc899ca62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-20T10:31:50Z",
    "title_canon_sha256": "6cd5ad1c93da74e25bcd93fc238b739f948db9c117468c4a56300221c53a0668"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.09416",
    "kind": "arxiv",
    "version": 4
  }
}