Pith Number

pith:X6YBNSU4

pith:2019:X6YBNSU4BCFQNNSPI7HTSJPWAQ

not attested not anchored not stored refs pending

Hierarchically-Refined Label Attention Network for Sequence Labeling

Leyang Cui, Yue Zhang

arxiv:1908.08676 v3 · 2019-08-23 · 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{X6YBNSU4BCFQNNSPI7HTSJPWAQ}

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	2026-07-05T00:17:39.014405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfb016ca9c088b06b64f47cf3925f6041d172d80edb1b39757841792ee782206

Aliases

arxiv: 1908.08676 · arxiv_version: 1908.08676v3 · doi: 10.48550/arxiv.1908.08676 · pith_short_12: X6YBNSU4BCFQ · pith_short_16: X6YBNSU4BCFQNNSP · pith_short_8: X6YBNSU4

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/X6YBNSU4BCFQNNSPI7HTSJPWAQ \
  | 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: bfb016ca9c088b06b64f47cf3925f6041d172d80edb1b39757841792ee782206

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af777fb7d199f959bffdcccf90ef83786414f2df1ccfe50fc5ae011292248bd8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-23T05:55:46Z",
    "title_canon_sha256": "258f1278e99d0c2a7959fcf8f06d50840f8197d14ef7d6078b040529a2b6525f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08676",
    "kind": "arxiv",
    "version": 3
  }
}