Pith Number

pith:64Z2ZBKI

pith:2022:64Z2ZBKI3XYM57WBEMW6MZTVEL

not attested not anchored not stored refs pending

Knowledge-Spreader: Learning Facial Action Unit Dynamics with Extremely Limited Labels

Lijun Yin, Taoyue Wang, Xiang Zhang, Xiaotian Li

arxiv:2203.16678 v1 · 2022-03-30 · 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{64Z2ZBKI3XYM57WBEMW6MZTVEL}

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	2026-07-05T04:10:14.784515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f733ac8548ddf0cefec1232de6667522d65152f04a922a5268d796dcad25d2f1

Aliases

arxiv: 2203.16678 · arxiv_version: 2203.16678v1 · doi: 10.48550/arxiv.2203.16678 · pith_short_12: 64Z2ZBKI3XYM · pith_short_16: 64Z2ZBKI3XYM57WB · pith_short_8: 64Z2ZBKI

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/64Z2ZBKI3XYM57WBEMW6MZTVEL \
  | 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: f733ac8548ddf0cefec1232de6667522d65152f04a922a5268d796dcad25d2f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e60cc4b1ce9445ba051f47421779e44d4dd535602a70d1bfd4b1a21b3e7c970d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-30T21:12:13Z",
    "title_canon_sha256": "9922e1a2cef5f7c8bc6dad4275c6f8f274211425e5a394b395ace3c96ee33b87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16678",
    "kind": "arxiv",
    "version": 1
  }
}