Pith Number

pith:2AJW6GVD

pith:2019:2AJW6GVDZFAMKOXYGVBOW3KELF

not attested not anchored not stored refs pending

Recursive Subtree Composition in LSTM-Based Dependency Parsing

Joakim Nivre, Miguel Ballesteros, Miryam de Lhoneux

arxiv:1902.09781 v1 · 2019-02-26 · 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{2AJW6GVDZFAMKOXYGVBOW3KELF}

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	2026-05-17T23:52:35.385155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0136f1aa3c940c53af83542eb6d445962879d038641e900b80b66d0d6c57aa3

Aliases

arxiv: 1902.09781 · arxiv_version: 1902.09781v1 · doi: 10.48550/arxiv.1902.09781 · pith_short_12: 2AJW6GVDZFAM · pith_short_16: 2AJW6GVDZFAMKOXY · pith_short_8: 2AJW6GVD

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/2AJW6GVDZFAMKOXYGVBOW3KELF \
  | 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: d0136f1aa3c940c53af83542eb6d445962879d038641e900b80b66d0d6c57aa3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c443c85f88b54e9174906fd128914a2a13796654ebe276813ebad08ce5f63e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-02-26T07:57:22Z",
    "title_canon_sha256": "e268d1451905f046c8e4daab1a4e12c84f04d858626227d5b870e3b26571c857"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09781",
    "kind": "arxiv",
    "version": 1
  }
}