Pith Number

pith:2DFQEPEH

pith:2022:2DFQEPEHPO5D3RHDT5Z7SHQX7H

not attested not anchored not stored refs pending

An Approach for Improving Automatic Mouth Emotion Recognition

Damiano Perri, Giulio Biondi, Osvaldo Gervasi, Valentina Franzoni

arxiv:2212.06009 v1 · 2022-12-12 · 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{2DFQEPEHPO5D3RHDT5Z7SHQX7H}

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	2026-07-05T05:24:21.691969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0cb023c877bba3dc4e39f73f91e17f9e6987fb91e0af190c3d0f314d6645cf1

Aliases

arxiv: 2212.06009 · arxiv_version: 2212.06009v1 · doi: 10.48550/arxiv.2212.06009 · pith_short_12: 2DFQEPEHPO5D · pith_short_16: 2DFQEPEHPO5D3RHD · pith_short_8: 2DFQEPEH

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/2DFQEPEHPO5D3RHDT5Z7SHQX7H \
  | 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: d0cb023c877bba3dc4e39f73f91e17f9e6987fb91e0af190c3d0f314d6645cf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81499b32781e767dbd0b23f2ed68fa1e79e9f162ff3d96387fda4885a5b4e64f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-12-12T16:17:21Z",
    "title_canon_sha256": "ce65df844273f66493e40f26d697f2a0c9df1cc2b456fa61055e7e52510151bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.06009",
    "kind": "arxiv",
    "version": 1
  }
}