Pith Number

pith:UM6U22RV

pith:2018:UM6U22RVCI2L3VNYQDO3X3O3JD

not attested not anchored not stored refs pending

Aff-Wild2: Extending the Aff-Wild Database for Affect Recognition

Dimitrios Kollias, Stefanos Zafeiriou

arxiv:1811.07770 v2 · 2018-11-11 · cs.CV · cs.AI · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UM6U22RVCI2L3VNYQDO3X3O3JD}

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

4 papers in Pith

Chehre: An Emoji-Prompted Video Dataset for Perceptually Diverse Facial Expression Recognition

Facial Expression Recognition in the Deep Learning Era: A Systematic Multi-Criteria Review of Methods, Models, Datasets, Performance, Challenges, and Future Research Directions

Facial-Expression-Aware Prompting for Empathetic LLM Tutoring

LaScA: Language-Conditioned Scalable Modelling of Affective Dynamics

Receipt and verification

First computed	2026-07-05T00:26:05.694350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a33d4d6a351234bdd5b880ddbbeddb48cc65a32ae6fec421d9c8d403cf873d53

Aliases

arxiv: 1811.07770 · arxiv_version: 1811.07770v2 · doi: 10.48550/arxiv.1811.07770 · pith_short_12: UM6U22RVCI2L · pith_short_16: UM6U22RVCI2L3VNY · pith_short_8: UM6U22RV

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/UM6U22RVCI2L3VNYQDO3X3O3JD \
  | 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: a33d4d6a351234bdd5b880ddbbeddb48cc65a32ae6fec421d9c8d403cf873d53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c967170bb6489a31ad008d14ef7db7c95917d039461958712c3aac2016282df2",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-11-11T01:57:15Z",
    "title_canon_sha256": "cc489e2b0233c89a5eb350c1f386c25beb426eb59d401536ec8487e87820c704"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07770",
    "kind": "arxiv",
    "version": 2
  }
}