Pith Number

pith:4TJAQ5BO

pith:2018:4TJAQ5BOLCHJCK5RKQVC7QUI5U

not attested not anchored not stored refs pending

Lifelong Learning for Sentiment Classification

Bing Liu, Nianzu Ma, Zhiyuan Chen

arxiv:1801.02808 v1 · 2018-01-09 · cs.CL · cs.IR · 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{4TJAQ5BOLCHJCK5RKQVC7QUI5U}

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	2026-05-18T00:26:22.400211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4d208742e588e912bb1542a2fc288ed0ba41463e50b425bd6e891c53db3c3e7

Aliases

arxiv: 1801.02808 · arxiv_version: 1801.02808v1 · doi: 10.48550/arxiv.1801.02808 · pith_short_12: 4TJAQ5BOLCHJ · pith_short_16: 4TJAQ5BOLCHJCK5R · pith_short_8: 4TJAQ5BO

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/4TJAQ5BOLCHJCK5RKQVC7QUI5U \
  | 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: e4d208742e588e912bb1542a2fc288ed0ba41463e50b425bd6e891c53db3c3e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5168da1878bb9fc6b848f9295f10ff991de17909713da35e383395be4a4c88a3",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-01-09T06:11:50Z",
    "title_canon_sha256": "cdc3042ecd5c34fb859c33c453bf09b5607cd4ec31317366bc5dcea72c88eceb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02808",
    "kind": "arxiv",
    "version": 1
  }
}