Pith Number

pith:DKZ2B4FH

pith:2021:DKZ2B4FHXTBWL3FZBABEI5OJVF

not attested not anchored not stored refs pending

Identity-aware Facial Expression Recognition in Compressed Video

Jane You, Jun Lu, Linghao Jin, Lingsheng Kong, Xiaofeng Liu, Xu Han

arxiv:2101.00317 v2 · 2021-01-01 · cs.CV · cs.AI · cs.LG · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKZ2B4FHXTBWL3FZBABEI5OJVF}

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	2026-07-05T02:05:29.426800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab3a0f0a7bcc365ecb908024475c9a94878361f354ae60b13aa35967cf80ffa

Aliases

arxiv: 2101.00317 · arxiv_version: 2101.00317v2 · doi: 10.48550/arxiv.2101.00317 · pith_short_12: DKZ2B4FHXTBW · pith_short_16: DKZ2B4FHXTBWL3FZ · pith_short_8: DKZ2B4FH

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/DKZ2B4FHXTBWL3FZBABEI5OJVF \
  | 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: 1ab3a0f0a7bcc365ecb908024475c9a94878361f354ae60b13aa35967cf80ffa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb7fbaf539fd00b76b51c135886f7e020596e13aee749412ebb8dfc606b92243",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "cs.MM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-01-01T21:03:13Z",
    "title_canon_sha256": "81b349c5ff41f8ccb660a2ea801d2c0bade8cf29f8cae0e52d82224ba4011762"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.00317",
    "kind": "arxiv",
    "version": 2
  }
}