Pith Number

pith:37SXEDZD

pith:2018:37SXEDZDDGPNPCKWABGKNXTGG4

not attested not anchored not stored refs pending

Semantic Document Clustering on Named Entity Features

Dung T. Hong, Tho T. Quan, Tru H. Cao, Vuong M. Ngo

arxiv:1807.07777 v1 · 2018-07-20 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37SXEDZDDGPNPCKWABGKNXTGG4}

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	2026-05-18T00:10:15.692394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfe5720f23199ed78956004ca6de663709273491c5504bfd329f01cdf15bdedd

Aliases

arxiv: 1807.07777 · arxiv_version: 1807.07777v1 · doi: 10.48550/arxiv.1807.07777 · pith_short_12: 37SXEDZDDGPN · pith_short_16: 37SXEDZDDGPNPCKW · pith_short_8: 37SXEDZD

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/37SXEDZDDGPNPCKWABGKNXTGG4 \
  | 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: dfe5720f23199ed78956004ca6de663709273491c5504bfd329f01cdf15bdedd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d13fe469f680f181250a33ae181305c9b0e3e6c2df6a5418643e46f5b70c7bd0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-07-20T10:24:09Z",
    "title_canon_sha256": "88be32b98c55b7acb28cfa847dfbd3d00f520dca8bf7a262bcf0737c7972c7aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07777",
    "kind": "arxiv",
    "version": 1
  }
}