Pith Number

pith:O33KTMLR

pith:2019:O33KTMLRNP2CR6U54MT37TVMMM

not attested not anchored not stored refs pending

Exploiting Entity BIO Tag Embeddings and Multi-task Learning for Relation Extraction with Imbalanced Data

Bo Li, Long Chen, Rui Xie, Shikun Zhang, Wei Ye, Zhonghao Sheng

arxiv:1906.08931 v1 · 2019-06-21 · 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{O33KTMLRNP2CR6U54MT37TVMMM}

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	2026-05-17T23:42:47.358083Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76f6a9b1716bf428fa9de327bfceac6303b18c9e92abdb993945c32aea9a7f16

Aliases

arxiv: 1906.08931 · arxiv_version: 1906.08931v1 · doi: 10.48550/arxiv.1906.08931 · pith_short_12: O33KTMLRNP2C · pith_short_16: O33KTMLRNP2CR6U5 · pith_short_8: O33KTMLR

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/O33KTMLRNP2CR6U54MT37TVMMM \
  | 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: 76f6a9b1716bf428fa9de327bfceac6303b18c9e92abdb993945c32aea9a7f16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bd58c78240fa4609fcadf51f214e313cdb0dd8306c1c56092472b5caa08d3d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-06-21T03:25:30Z",
    "title_canon_sha256": "c24a379fcbb66beedfe6b18d151dd4f209719f0b7da5bfb66417e9e9e77b8c00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08931",
    "kind": "arxiv",
    "version": 1
  }
}