Pith Number

pith:VMMCV43Q

pith:2020:VMMCV43QICLJSNUUPLDDQ6PFXP

not attested not anchored not stored refs pending

Cluster-Former: Clustering-based Sparse Transformer for Long-Range Dependency Encoding

Jingjing Liu, Luowei Zhou, Shuohang Wang, Siqi Sun, Yen-Chun Chen, Yu Cheng, Yuwei Fang, Zhe Gan

arxiv:2009.06097 v2 · 2020-09-13 · 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{VMMCV43QICLJSNUUPLDDQ6PFXP}

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	2026-07-05T02:46:42.107999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab182af37040969936947ac63879e5bbfe2aaf486a3aee90a865a0723e759895

Aliases

arxiv: 2009.06097 · arxiv_version: 2009.06097v2 · doi: 10.48550/arxiv.2009.06097 · pith_short_12: VMMCV43QICLJ · pith_short_16: VMMCV43QICLJSNUU · pith_short_8: VMMCV43Q

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/VMMCV43QICLJSNUUPLDDQ6PFXP \
  | 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: ab182af37040969936947ac63879e5bbfe2aaf486a3aee90a865a0723e759895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "969e503b2d1a3b74e9f8dcf39825af1c3d388bd3a133d06ea778ab3fd248bf8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-09-13T22:09:30Z",
    "title_canon_sha256": "0721580ec342a41b1f7c6e495bdc3fe1b33eb1a8469a4d332b809dd942400dce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.06097",
    "kind": "arxiv",
    "version": 2
  }
}