Pith Number

pith:IA5NKFFK

pith:2016:IA5NKFFKFFTQDAQIY5CUD6M4YU

not attested not anchored not stored refs pending

An Empirical Study of Dimensional Reduction Techniques for Facial Action Units Detection

Wen-Sheng Chu, Zhuo Hui

arxiv:1603.08039 v1 · 2016-03-25 · 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{IA5NKFFKFFTQDAQIY5CUD6M4YU}

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	2026-05-18T01:18:13.479686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

403ad514aa2967018208c74541f99cc5210a184f69cbd7532436f91251128624

Aliases

arxiv: 1603.08039 · arxiv_version: 1603.08039v1 · doi: 10.48550/arxiv.1603.08039 · pith_short_12: IA5NKFFKFFTQ · pith_short_16: IA5NKFFKFFTQDAQI · pith_short_8: IA5NKFFK

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/IA5NKFFKFFTQDAQIY5CUD6M4YU \
  | 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: 403ad514aa2967018208c74541f99cc5210a184f69cbd7532436f91251128624

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eea7a9b0cf4d336789acfe54a8e5e66979699c7d9b30ca13be9a2dee5ac5ef19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2016-03-25T21:27:31Z",
    "title_canon_sha256": "53e63f7706eefa581614a32f2ce0dc5659796232da54c4ca0d35b2422da23390"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08039",
    "kind": "arxiv",
    "version": 1
  }
}