Pith Number

pith:Q4Z7WQ5P

pith:2021:Q4Z7WQ5P4STNJGSUUOAWWN6X6Y

not attested not anchored not stored refs pending

Face Recognition Using $Sf_{3}CNN$ With Higher Feature Discrimination

Nayaneesh Kumar Mishra, Satish Kumar Singh

arxiv:2102.01404 v1 · 2021-02-02 · 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{Q4Z7WQ5P4STNJGSUUOAWWN6X6Y}

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	2026-07-05T02:11:30.425801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8733fb43afe4a6d49a54a3816b37d7f61a7e635f2a339c7b3fe2ab539a935346

Aliases

arxiv: 2102.01404 · arxiv_version: 2102.01404v1 · doi: 10.48550/arxiv.2102.01404 · pith_short_12: Q4Z7WQ5P4STN · pith_short_16: Q4Z7WQ5P4STNJGSU · pith_short_8: Q4Z7WQ5P

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/Q4Z7WQ5P4STNJGSUUOAWWN6X6Y \
  | 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: 8733fb43afe4a6d49a54a3816b37d7f61a7e635f2a339c7b3fe2ab539a935346

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7b0f9c330c79ec674def5547dbd93862916a62b6f4bd1c15776a8a2de9414f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-02-02T09:47:31Z",
    "title_canon_sha256": "f7850b58bf3bec05cd09ca853a3aa86b2df2522f795b7a5c3d6424122358044a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.01404",
    "kind": "arxiv",
    "version": 1
  }
}