Pith Number

pith:QVZIXXGZ

pith:2018:QVZIXXGZVUFMYATIMX6VXL4XAN

not attested not anchored not stored refs pending

Comparing CNN and LSTM character-level embeddings in BiLSTM-CRF models for chemical and disease named entity recognition

Dat Quoc Nguyen, Karin Verspoor, Zenan Zhai

arxiv:1808.08450 v1 · 2018-08-25 · 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{QVZIXXGZVUFMYATIMX6VXL4XAN}

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	2026-05-18T00:07:16.457567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85728bdcd9ad0acc026865fd5baf970341bee8b48abf8bbd85046e5eb467f431

Aliases

arxiv: 1808.08450 · arxiv_version: 1808.08450v1 · doi: 10.48550/arxiv.1808.08450 · pith_short_12: QVZIXXGZVUFM · pith_short_16: QVZIXXGZVUFMYATI · pith_short_8: QVZIXXGZ

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/QVZIXXGZVUFMYATIMX6VXL4XAN \
  | 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: 85728bdcd9ad0acc026865fd5baf970341bee8b48abf8bbd85046e5eb467f431

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "571149e8d71de576e7de660feeeba4adbc650603804521b512c318a8429783e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-08-25T17:02:29Z",
    "title_canon_sha256": "685e07b6b6a09e07f7ed9563bd4cfe6fab5ad89bf6712d37e4a4b19d95bca4ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08450",
    "kind": "arxiv",
    "version": 1
  }
}