Pith Number

pith:2PKSSH3A

pith:2018:2PKSSH3ADGLEZ57LOOCB6OLJZL

not attested not anchored not stored refs pending

A Survey of Automatic Facial Micro-expression Analysis: Databases, Methods and Challenges

Anh Cat Le Ngo, John See, Raphael Chung-Wei Phan, Vishnu Monn Baskaran, Yee-Hui Oh

arxiv:1806.05781 v1 · 2018-06-15 · cs.CV · 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{2PKSSH3ADGLEZ57LOOCB6OLJZL}

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	2026-05-18T00:13:09.476048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3d5291f6019964cf7eb73841f3969cae73100bdc55f68acfb721b56fe253309

Aliases

arxiv: 1806.05781 · arxiv_version: 1806.05781v1 · doi: 10.48550/arxiv.1806.05781 · pith_short_12: 2PKSSH3ADGLE · pith_short_16: 2PKSSH3ADGLEZ57L · pith_short_8: 2PKSSH3A

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/2PKSSH3ADGLEZ57LOOCB6OLJZL \
  | 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: d3d5291f6019964cf7eb73841f3969cae73100bdc55f68acfb721b56fe253309

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5dfc0c0ead5b5db0fd3e2c5774ae070ed7a78abcbcdd71a59ba3e56d19ea28b",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-06-15T01:42:33Z",
    "title_canon_sha256": "b071faa7e9fb275476eec4c7992714db2dbcbd1b2e65d1be5a7441f123355e92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.05781",
    "kind": "arxiv",
    "version": 1
  }
}