Pith Number

pith:QOW2N4BP

pith:2017:QOW2N4BPJXEYUDC2NEXRFZVB7O

not attested not anchored not stored refs pending

Convolutional Neural Networks for Facial Expression Recognition

Azar Fazel, Shima Alizadeh

arxiv:1704.06756 v1 · 2017-04-22 · 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{QOW2N4BPJXEYUDC2NEXRFZVB7O}

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	2026-05-18T00:45:57.695878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ada6f02f4dc98a0c5a692f12e6a1fba9ee891c785d075e395a83310b38bf0b

Aliases

arxiv: 1704.06756 · arxiv_version: 1704.06756v1 · doi: 10.48550/arxiv.1704.06756 · pith_short_12: QOW2N4BPJXEY · pith_short_16: QOW2N4BPJXEYUDC2 · pith_short_8: QOW2N4BP

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/QOW2N4BPJXEYUDC2NEXRFZVB7O \
  | 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: 83ada6f02f4dc98a0c5a692f12e6a1fba9ee891c785d075e395a83310b38bf0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddab67201612d47aa67c5bf6806b1b132299f4ebe692970f670c3dc7b34a75e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-04-22T06:27:56Z",
    "title_canon_sha256": "ff016d0eab26faba25aa7da2bfd7b0fa68c29d2ecb7f3d1ad9836f668f9cf341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06756",
    "kind": "arxiv",
    "version": 1
  }
}