Pith Number

pith:R2RRAZLW

pith:2018:R2RRAZLW5YYEE6Z6WETSOLQYFV

not attested not anchored not stored refs pending

In-the-wild Facial Expression Recognition in Extreme Poses

Chi Zheng, Fei Yang, Guoping Qiu, Qian Zhang

arxiv:1811.02194 v1 · 2018-11-06 · 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{R2RRAZLW5YYEE6Z6WETSOLQYFV}

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	2026-05-18T00:01:24.862903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ea3106576ee30427b3eb127272e182d66bd084a6bfdd7475a67c2509fabd56c

Aliases

arxiv: 1811.02194 · arxiv_version: 1811.02194v1 · doi: 10.48550/arxiv.1811.02194 · pith_short_12: R2RRAZLW5YYE · pith_short_16: R2RRAZLW5YYEE6Z6 · pith_short_8: R2RRAZLW

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/R2RRAZLW5YYEE6Z6WETSOLQYFV \
  | 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: 8ea3106576ee30427b3eb127272e182d66bd084a6bfdd7475a67c2509fabd56c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6e3589561874d31332212f4eb000491f0aea48efcfda78d80bded6e38eeb1b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-11-06T07:02:14Z",
    "title_canon_sha256": "50c3edfffdec001fae9fc77a406238ad1c45858d9f8329ccb8e8530f4d8d5ede"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02194",
    "kind": "arxiv",
    "version": 1
  }
}