Pith Number

pith:W4UYUMG2

pith:2019:W4UYUMG2FSF4VHXKTT6CT2KET7

not attested not anchored not stored refs pending

Addressing Ambiguity of Emotion Labels Through Meta-Learning

Dario Bertero, Kenji Nagamatsu, Takeshi Homma, Takuya Fujioka

arxiv:1911.02216 v2 · 2019-11-06 · eess.AS · cs.LG · cs.SD

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4UYUMG2FSF4VHXKTT6CT2KET7}

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	2026-07-05T00:17:56.125127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7298a30da2c8bca9eea9cfc29e9449fe1442829d8db505b520098362fa1d7ff

Aliases

arxiv: 1911.02216 · arxiv_version: 1911.02216v2 · doi: 10.48550/arxiv.1911.02216 · pith_short_12: W4UYUMG2FSF4 · pith_short_16: W4UYUMG2FSF4VHXK · pith_short_8: W4UYUMG2

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/W4UYUMG2FSF4VHXKTT6CT2KET7 \
  | 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: b7298a30da2c8bca9eea9cfc29e9449fe1442829d8db505b520098362fa1d7ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80ed62138027227c1a3a72388898f8e4cdedd6bef6b48c8d95c7a11935c26858",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.AS",
    "submitted_at": "2019-11-06T06:21:31Z",
    "title_canon_sha256": "c7a542df3135966fc7f41b5581e0326086a8b3332e95cdd1b25ea059df1a6edd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.02216",
    "kind": "arxiv",
    "version": 2
  }
}