Pith Number

pith:2UP6KGC2

pith:2019:2UP6KGC2NG5B6QSNFC3QACEYM5

not attested not anchored not stored refs pending

Selection Bias Explorations and Debias Methods for Natural Language Sentence Matching Datasets

Bing Bai, Conghui Zhu, Guanhua Zhang, Jian Liang, Kun Bai, Mo Yu, Shiyu Chang, Tiejun Zhao

arxiv:1905.06221 v4 · 2019-05-15 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2UP6KGC2NG5B6QSNFC3QACEYM5}

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	2026-05-17T23:43:49.339393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d51fe5185a69ba1f424d28b70008986750f2ecd597e06d6b9cfbe84d5e5e7495

Aliases

arxiv: 1905.06221 · arxiv_version: 1905.06221v4 · doi: 10.48550/arxiv.1905.06221 · pith_short_12: 2UP6KGC2NG5B · pith_short_16: 2UP6KGC2NG5B6QSN · pith_short_8: 2UP6KGC2

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/2UP6KGC2NG5B6QSNFC3QACEYM5 \
  | 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: d51fe5185a69ba1f424d28b70008986750f2ecd597e06d6b9cfbe84d5e5e7495

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de0526741f26a22deae49dc587db7b90ae567cba5d921ad7860907b5c9dade3f",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-15T14:51:33Z",
    "title_canon_sha256": "cb8cb5735fb2f6abd63c370c30cd1cabc0d13b394b7c5c5a8b54f29637c7b6f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06221",
    "kind": "arxiv",
    "version": 4
  }
}