Pith Number

pith:HPYUNCCV

pith:2023:HPYUNCCV2BCANMGF6YNU5VRUKY

not attested not anchored not stored refs pending

Improving Sentence Similarity Estimation for Unsupervised Extractive Summarization

Ruifeng Yuan, Shichao Sun, Sujian Li, Wenjie Li

arxiv:2302.12490 v1 · 2023-02-24 · 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{HPYUNCCV2BCANMGF6YNU5VRUKY}

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	2026-07-05T05:45:10.373869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bf1468855d04406b0c5f61b4ed63456364a7e52e71412b62f34844897f2cd5a

Aliases

arxiv: 2302.12490 · arxiv_version: 2302.12490v1 · doi: 10.48550/arxiv.2302.12490 · pith_short_12: HPYUNCCV2BCA · pith_short_16: HPYUNCCV2BCANMGF · pith_short_8: HPYUNCCV

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/HPYUNCCV2BCANMGF6YNU5VRUKY \
  | 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: 3bf1468855d04406b0c5f61b4ed63456364a7e52e71412b62f34844897f2cd5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b17a6944c274c6d068a70161dca24938d741d5596ca5e8093ac742acbdc4846d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2023-02-24T07:10:33Z",
    "title_canon_sha256": "06b06493185e9a4ebda1111798259f5131af58b4a8fa2a08ffc86814a1619db0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.12490",
    "kind": "arxiv",
    "version": 1
  }
}