Pith Number

pith:RR3NPO6J

pith:2021:RR3NPO6JNQIL2IDLXBDKYRB7EC

not attested not anchored not stored refs pending

CLEVE: Contrastive Pre-training for Event Extraction

Jie Zhou, Juanzi Li, Lei Hou, Peng Li, Xiaozhi Wang, Xu Han, Yankai Lin, Zhiyuan Liu, Ziqi Wang

arxiv:2105.14485 v1 · 2021-05-30 · 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{RR3NPO6JNQIL2IDLXBDKYRB7EC}

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	2026-07-05T02:44:24.498084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c76d7bbc96c10bd206bb846ac443f20950f7e54a1de4e6e34e23dd81680fc52

Aliases

arxiv: 2105.14485 · arxiv_version: 2105.14485v1 · doi: 10.48550/arxiv.2105.14485 · pith_short_12: RR3NPO6JNQIL · pith_short_16: RR3NPO6JNQIL2IDL · pith_short_8: RR3NPO6J

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/RR3NPO6JNQIL2IDLXBDKYRB7EC \
  | 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: 8c76d7bbc96c10bd206bb846ac443f20950f7e54a1de4e6e34e23dd81680fc52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab76b835eda1a50a32bc9076b0fffbe1cc05d1ca82b11dd51ec1145854c98b3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-05-30T09:50:17Z",
    "title_canon_sha256": "7bc59869109196dc525c92f7ce19d64293eef135949ff1d434ee8a849e84fb65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.14485",
    "kind": "arxiv",
    "version": 1
  }
}