Pith Number

pith:NXDEZWF2

pith:2021:NXDEZWF2WMCGJZK2CDNTBMTEGM

not attested not anchored not stored refs pending

Feature Decomposition and Reconstruction Learning for Effective Facial Expression Recognition

Chunhua Shen, Delian Ruan, Hanzi Wang, Shenqi Lai, Yan Yan, Zhenhua Chai

arxiv:2104.05160 v2 · 2021-04-12 · 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{NXDEZWF2WMCGJZK2CDNTBMTEGM}

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	2026-07-05T02:33:58.776865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dc64cd8bab30464e55a10db30b264330699f2ea19c952c9e4f1600b7f81d300

Aliases

arxiv: 2104.05160 · arxiv_version: 2104.05160v2 · doi: 10.48550/arxiv.2104.05160 · pith_short_12: NXDEZWF2WMCG · pith_short_16: NXDEZWF2WMCGJZK2 · pith_short_8: NXDEZWF2

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/NXDEZWF2WMCGJZK2CDNTBMTEGM \
  | 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: 6dc64cd8bab30464e55a10db30b264330699f2ea19c952c9e4f1600b7f81d300

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be031590b1901eb46820b74b53642f28b7526f2b024118f548ab477f6e6e75a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-04-12T02:22:45Z",
    "title_canon_sha256": "1d0f5e498c11fdbc1522b9d05ceab2c4cbd64ffa9b14c3bd1ffdde3e4f2bcfec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05160",
    "kind": "arxiv",
    "version": 2
  }
}