Pith Number

pith:KRRIKTMJ

pith:2021:KRRIKTMJRFRIHPJF5GFJW5LWLG

not attested not anchored not stored refs pending

Adapting BERT for Continual Learning of a Sequence of Aspect Sentiment Classification Tasks

Bing Liu, Hu Xu, Zixuan Ke

arxiv:2112.03271 v1 · 2021-12-06 · cs.CL · cs.AI · cs.LG · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KRRIKTMJRFRIHPJF5GFJW5LWLG}

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	2026-07-05T03:42:06.203610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5462854d89896283bd25e98a9b757659a27b807b72197d7b0bf54892fd268932

Aliases

arxiv: 2112.03271 · arxiv_version: 2112.03271v1 · doi: 10.48550/arxiv.2112.03271 · pith_short_12: KRRIKTMJRFRI · pith_short_16: KRRIKTMJRFRIHPJF · pith_short_8: KRRIKTMJ

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/KRRIKTMJRFRIHPJF5GFJW5LWLG \
  | 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: 5462854d89896283bd25e98a9b757659a27b807b72197d7b0bf54892fd268932

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24bbaa42af9d8681f85dd560573ef94b34deb971445ab7de1d9ccf83f0514505",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "cs.NE"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-12-06T02:46:06Z",
    "title_canon_sha256": "20d6c6fac51f4f533b3551d264d4ccf1a46aff28561d423ef9e4a44ecf49a871"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.03271",
    "kind": "arxiv",
    "version": 1
  }
}