Pith Number

pith:2XL3MVWI

pith:2013:2XL3MVWIJD32P2COTBELN2SX22

not attested not anchored not stored refs pending

A Comparative Study on Linguistic Feature Selection in Sentiment Polarity Classification

Zitao Liu

arxiv:1311.0833 v1 · 2013-11-04 · 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{2XL3MVWIJD32P2COTBELN2SX22}

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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	2026-05-18T03:08:04.733972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5d7b656c848f7a7e84e9848b6ea57d6b0b87d023ef2f081665828f73987d062

Aliases

arxiv: 1311.0833 · arxiv_version: 1311.0833v1 · doi: 10.48550/arxiv.1311.0833 · pith_short_12: 2XL3MVWIJD32 · pith_short_16: 2XL3MVWIJD32P2CO · pith_short_8: 2XL3MVWI

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/2XL3MVWIJD32P2COTBELN2SX22 \
  | 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: d5d7b656c848f7a7e84e9848b6ea57d6b0b87d023ef2f081665828f73987d062

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a670ebf4e871657f77d5fe3109b777aa64684176ab7d0f4426577e375d5b49a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-11-04T20:11:35Z",
    "title_canon_sha256": "0baa93446e61bb7524c07542eabdcf433ccce7821f77afb1b0f52a880f715262"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0833",
    "kind": "arxiv",
    "version": 1
  }
}