Pith Number

pith:D3PGK25R

pith:2015:D3PGK25RQ6J7H2UZXY3YA34PLY

not attested not anchored not stored refs pending

When Are Tree Structures Necessary for Deep Learning of Representations?

Dan Jurafsky, Eudard Hovy, Jiwei Li, Minh-Thang Luong

arxiv:1503.00185 v5 · 2015-02-28 · cs.AI · 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{D3PGK25RQ6J7H2UZXY3YA34PLY}

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	2026-05-18T01:35:11.034158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ede656bb18793f3ea99be37806f8f5e10f28a12e77b8a1192788b6a241af80a

Aliases

arxiv: 1503.00185 · arxiv_version: 1503.00185v5 · doi: 10.48550/arxiv.1503.00185 · pith_short_12: D3PGK25RQ6J7 · pith_short_16: D3PGK25RQ6J7H2UZ · pith_short_8: D3PGK25R

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/D3PGK25RQ6J7H2UZXY3YA34PLY \
  | 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: 1ede656bb18793f3ea99be37806f8f5e10f28a12e77b8a1192788b6a241af80a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51073f1e56cf6f1490f3722cc6d6ae9745cd7ca1f081e2add1215c26830890d7",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2015-02-28T21:39:31Z",
    "title_canon_sha256": "2cc4b24fa4d6ac88e3911217dfeb3c7f222153b1590e13d14e044238da88eb62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00185",
    "kind": "arxiv",
    "version": 5
  }
}