Pith Number

pith:LFFWRMJM

pith:2019:LFFWRMJMR7PFDYSQAUXZPBIXIK

not attested not anchored not stored refs pending

Entity, Relation, and Event Extraction with Contextualized Span Representations

David Wadden, Hannaneh Hajishirzi, Ulme Wennberg, Yi Luan

arxiv:1909.03546 v2 · 2019-09-08 · 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{LFFWRMJMR7PFDYSQAUXZPBIXIK}

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.

Cited by

3 papers in Pith

EXCEEDS: Extracting Complex Events via Nugget-based Grid Modeling in Scientific Domain

FinTagging: Benchmarking LLMs for Extracting and Structuring Financial Information

Medical Report Generation: A Hierarchical Task Structure-Based Cross-Modal Causal Intervention Framework

Receipt and verification

First computed	2026-07-05T00:03:18.116536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

594b68b12c8fde51e250052f97851742b5455758d64d8efa8acbe0672b7665ba

Aliases

arxiv: 1909.03546 · arxiv_version: 1909.03546v2 · doi: 10.48550/arxiv.1909.03546 · pith_short_12: LFFWRMJMR7PF · pith_short_16: LFFWRMJMR7PFDYSQ · pith_short_8: LFFWRMJM

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/LFFWRMJMR7PFDYSQAUXZPBIXIK \
  | 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: 594b68b12c8fde51e250052f97851742b5455758d64d8efa8acbe0672b7665ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd9379d1c7a2f085d07362886acf5041bd2af876e3fc71683fbc1111ad39fcc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-09-08T21:19:09Z",
    "title_canon_sha256": "24482647fa6056a3994603366a556174e00ba30583fe65f5bbdfd8521a2d4f4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.03546",
    "kind": "arxiv",
    "version": 2
  }
}