Pith Number

pith:QCFOBFQU

pith:2019:QCFOBFQUNAYRPI3ANINGV365CZ

not attested not anchored not stored refs pending

Controlled CNN-based Sequence Labeling for Aspect Extraction

Bing Liu, Hu Xu, Lei Shu

arxiv:1905.06407 v2 · 2019-05-15 · cs.CL · 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{QCFOBFQUNAYRPI3ANINGV365CZ}

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	2026-05-17T23:44:42.176533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

808ae09614683117a3606a1a6aefdd16496da1e09ce767dc8093ca86c768b17d

Aliases

arxiv: 1905.06407 · arxiv_version: 1905.06407v2 · doi: 10.48550/arxiv.1905.06407 · pith_short_12: QCFOBFQUNAYR · pith_short_16: QCFOBFQUNAYRPI3A · pith_short_8: QCFOBFQU

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/QCFOBFQUNAYRPI3ANINGV365CZ \
  | 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: 808ae09614683117a3606a1a6aefdd16496da1e09ce767dc8093ca86c768b17d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb52f538e159c74c6b6d6be021aeaab92589fe6721828078c286c27925d20b88",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-15T19:28:10Z",
    "title_canon_sha256": "38787ac2bb6786030b1916f106052624146538b196f7d8daafc6fd0095732459"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06407",
    "kind": "arxiv",
    "version": 2
  }
}