Pith Number

pith:BLIDOAFR

pith:2021:BLIDOAFR3KTWRCG6CY2G64NVGB

not attested not anchored not stored refs pending

HETFORMER: Heterogeneous Transformer with Sparse Attention for Long-Text Extractive Summarization

Congying Xia, Jian-Guo Zhang, Lifang He, Philip S. Yu, Yao Wan, Ye Liu

arxiv:2110.06388 v2 · 2021-10-12 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLIDOAFR3KTWRCG6CY2G64NVGB}

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	2026-07-05T03:24:13.515496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ad03700b1daa76888de16346f71b5306668c781ceea4aa762a2a7cb267ef5fd

Aliases

arxiv: 2110.06388 · arxiv_version: 2110.06388v2 · doi: 10.48550/arxiv.2110.06388 · pith_short_12: BLIDOAFR3KTW · pith_short_16: BLIDOAFR3KTWRCG6 · pith_short_8: BLIDOAFR

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/BLIDOAFR3KTWRCG6CY2G64NVGB \
  | 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: 0ad03700b1daa76888de16346f71b5306668c781ceea4aa762a2a7cb267ef5fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1267d99a92d4dc9d526c80e4c75d4cb320b8814cbf445f0507f4d35136690f7c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-10-12T22:42:31Z",
    "title_canon_sha256": "f4821dc77a76335932963f6b8222c104f5ad02bfce0d7f64bc7a46e7ed254802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.06388",
    "kind": "arxiv",
    "version": 2
  }
}