Pith Number

pith:SWRTHJBB

pith:2018:SWRTHJBBHXHSRW66JEV2UWXY5X

not attested not anchored not stored refs pending

Improving Aspect Term Extraction with Bidirectional Dependency Tree Representation

Bing Liu, Bin Wang, Herwig Unger, Huaishao Luo, Tianrui Li

arxiv:1805.07889 v2 · 2018-05-21 · 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{SWRTHJBBHXHSRW66JEV2UWXY5X}

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	2026-05-17T23:47:03.218524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95a333a4213dcf28dbde492baa5af8edf82a807f7d2bcb52bfbf077d5919de87

Aliases

arxiv: 1805.07889 · arxiv_version: 1805.07889v2 · doi: 10.48550/arxiv.1805.07889 · pith_short_12: SWRTHJBBHXHS · pith_short_16: SWRTHJBBHXHSRW66 · pith_short_8: SWRTHJBB

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/SWRTHJBBHXHSRW66JEV2UWXY5X \
  | 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: 95a333a4213dcf28dbde492baa5af8edf82a807f7d2bcb52bfbf077d5919de87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de715770cc59fdf7c398eb4ba549f2a98c2df4675cfad82ec6e3799bcb8d6396",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-05-21T04:49:53Z",
    "title_canon_sha256": "2ff7b2444a9759dcdff089214ac56e299945aea171f704b97cfc1a508cdd33c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07889",
    "kind": "arxiv",
    "version": 2
  }
}