Pith Number

pith:QEUR4PZI

pith:2019:QEUR4PZIWCRDCETZNRFS5SUAE2

not attested not anchored not stored refs pending

Sentiment and Sarcasm Classification with Multitask Learning

Alexander Gelbukh, Erik Cambria, Haiyun Peng, Navonil Majumder, Niyati Chhaya, Soujanya Poria

arxiv:1901.08014 v2 · 2019-01-23 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEUR4PZIWCRDCETZNRFS5SUAE2}

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	2026-05-17T23:51:41.780803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81291e3f28b0a23112796c4b2eca802681dfcf3d14e620a6557e290e586e49fb

Aliases

arxiv: 1901.08014 · arxiv_version: 1901.08014v2 · doi: 10.48550/arxiv.1901.08014 · pith_short_12: QEUR4PZIWCRD · pith_short_16: QEUR4PZIWCRDCETZ · pith_short_8: QEUR4PZI

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/QEUR4PZIWCRDCETZNRFS5SUAE2 \
  | 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: 81291e3f28b0a23112796c4b2eca802681dfcf3d14e620a6557e290e586e49fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "549466496dc41268e9e607ce18dc653ac0ab338846d588aa554c1ce0a7c866e3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-01-23T17:18:50Z",
    "title_canon_sha256": "c3d4b8a74aaa0d2b1ddeb24f51a54b632b230033a1dac9969b610178da0389fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08014",
    "kind": "arxiv",
    "version": 2
  }
}