Pith Number

pith:FTI3BNBN

pith:2021:FTI3BNBNVCUENZUM2XAG6G3VCR

not attested not anchored not stored refs pending

Expression Snippet Transformer for Robust Video-based Facial Expression Recognition

Chuanxu Feng, Haoyu Zhang, Wenbin Wang, Yibing Zhan, Yuanyuan Liu, Zhe Chen

arxiv:2109.08409 v1 · 2021-09-17 · 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{FTI3BNBNVCUENZUM2XAG6G3VCR}

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	2026-07-05T03:15:15.657220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cd1b0b42da8a846e68cd5c06f1b75145ca0fc644b385b6f734edf066d999fdc

Aliases

arxiv: 2109.08409 · arxiv_version: 2109.08409v1 · doi: 10.48550/arxiv.2109.08409 · pith_short_12: FTI3BNBNVCUE · pith_short_16: FTI3BNBNVCUENZUM · pith_short_8: FTI3BNBN

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/FTI3BNBNVCUENZUM2XAG6G3VCR \
  | 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: 2cd1b0b42da8a846e68cd5c06f1b75145ca0fc644b385b6f734edf066d999fdc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b47fd565521c02e7c5c8e392d1052a5a03bdbb074bb3a2373da2c79266d9e0e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-09-17T08:35:24Z",
    "title_canon_sha256": "9c62d317959ef139f6baec05dfc978f0bee8229f43f1aa2e9082eea295b22b0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.08409",
    "kind": "arxiv",
    "version": 1
  }
}