Pith Number

pith:3N3PARQ6

pith:2026:3N3PARQ6UMCPVMCUXAXDIEU6KQ

not attested not anchored not stored refs pending

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

Aggelos Psiris, Georgios Th. Papadopoulos, Iraklis Varlamis, Panagiotis Sarigiannidis, Spyridon Evangelatos, Spyridon Georgiou, Thomas Lagkas, Vasileios Argyriou

arxiv:2606.08612 v1 · 2026-06-07 · 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{3N3PARQ6UMCPVMCUXAXDIEU6KQ}

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	2026-06-09T01:05:41.468381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db76f0461ea304fab054b82e34129e541f5e746ef08739a29463c50fc7eabbb8

Aliases

arxiv: 2606.08612 · arxiv_version: 2606.08612v1 · doi: 10.48550/arxiv.2606.08612 · pith_short_12: 3N3PARQ6UMCP · pith_short_16: 3N3PARQ6UMCPVMCU · pith_short_8: 3N3PARQ6

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/3N3PARQ6UMCPVMCUXAXDIEU6KQ \
  | 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: db76f0461ea304fab054b82e34129e541f5e746ef08739a29463c50fc7eabbb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6600aacd0e7177786fb26ef9b6d5bb41b83a6ac9ec74d4513a71b3e6e26d5fe2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-07T12:58:33Z",
    "title_canon_sha256": "9d3255e7dd3967bcea75cb44a679f78b1f633eff7235c885e820f38b4ebf9216"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.08612",
    "kind": "arxiv",
    "version": 1
  }
}