Pith Number

pith:4Y7PEUNT

pith:2021:4Y7PEUNTOP7I7QN7NGWMZVIRXC

not attested not anchored not stored refs pending

An Enhanced Span-based Decomposition Method for Few-Shot Sequence Labeling

Baobao Chang, Peiyi Wang, Qingyu Zhou, Runxin Xu, Tianyu Liu, Yunbo Cao, Zhifang Sui

arxiv:2109.13023 v3 · 2021-09-27 · 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{4Y7PEUNTOP7I7QN7NGWMZVIRXC}

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	2026-07-05T04:20:43.352981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e63ef251b373fe8fc1bf69acccd511b88145829240736463e71f6bb343cef940

Aliases

arxiv: 2109.13023 · arxiv_version: 2109.13023v3 · doi: 10.48550/arxiv.2109.13023 · pith_short_12: 4Y7PEUNTOP7I · pith_short_16: 4Y7PEUNTOP7I7QN7 · pith_short_8: 4Y7PEUNT

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/4Y7PEUNTOP7I7QN7NGWMZVIRXC \
  | 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: e63ef251b373fe8fc1bf69acccd511b88145829240736463e71f6bb343cef940

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fdf735a03bc86f48f587f48121f7a9cf51d31653382329126f092ae41312d51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-27T12:59:48Z",
    "title_canon_sha256": "339da436498a8874f410b105bccaee97e6d69776e1d15483292f19afaaa7df47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13023",
    "kind": "arxiv",
    "version": 3
  }
}