Pith Number

pith:CBRYSZ4G

pith:2018:CBRYSZ4GNN4EV4NHSEJX6JMSQZ

not attested not anchored not stored refs pending

Automatic Recognition of Student Engagement using Deep Learning and Facial Expression

Cecile Paris, Deborah Richards, Len Hamey, Mark Dras, Omid Mohamad Nezami, Stephen Wan

arxiv:1808.02324 v5 · 2018-08-07 · cs.CV · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CBRYSZ4GNN4EV4NHSEJX6JMSQZ}

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.

Cited by

1 paper in Pith

PriorNet: Prior-Guided Engagement Estimation from Face Video

Receipt and verification

First computed	2026-05-17T23:41:17.915141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10638967866b784af1a791137f2592864232765ebfa3cf4ae21c3ecbfa220967

Aliases

arxiv: 1808.02324 · arxiv_version: 1808.02324v5 · doi: 10.48550/arxiv.1808.02324 · pith_short_12: CBRYSZ4GNN4E · pith_short_16: CBRYSZ4GNN4EV4NH · pith_short_8: CBRYSZ4G

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/CBRYSZ4GNN4EV4NHSEJX6JMSQZ \
  | 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: 10638967866b784af1a791137f2592864232765ebfa3cf4ae21c3ecbfa220967

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "747576713f90e781cc9af27ec9d6f22007420272b4404b4628c2acce93e363b6",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-08-07T12:38:20Z",
    "title_canon_sha256": "fe97ca6d6bc61500f965ce00419ab924962c18fd7b0102f46dcf1c68fc135ef1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02324",
    "kind": "arxiv",
    "version": 5
  }
}