Pith Number

pith:A7I4QCBJ

pith:2019:A7I4QCBJST3NQRAFIUUTPUHRKT

not attested not anchored not stored refs pending

Neural Constituency Parsing of Speech Transcripts

Mark Johnson, Paria Jamshid Lou, Yufei Wang

arxiv:1904.08535 v4 · 2019-04-17 · 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{A7I4QCBJST3NQRAFIUUTPUHRKT}

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	2026-07-05T00:54:11.860308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07d1c8082994f6d84405452937d0f154d00e3b048d47d5b71aec1b8422ee8e8e

Aliases

arxiv: 1904.08535 · arxiv_version: 1904.08535v4 · doi: 10.48550/arxiv.1904.08535 · pith_short_12: A7I4QCBJST3N · pith_short_16: A7I4QCBJST3NQRAF · pith_short_8: A7I4QCBJ

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/A7I4QCBJST3NQRAFIUUTPUHRKT \
  | 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: 07d1c8082994f6d84405452937d0f154d00e3b048d47d5b71aec1b8422ee8e8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74e4c31382953cfdcc8bd6af1598995ea775950f2ad7ac637c80fb29854748e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-04-17T23:30:17Z",
    "title_canon_sha256": "75b92801b7837c958770cafa82f8470998a2427de0f8154511ba4e4a5824b2dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08535",
    "kind": "arxiv",
    "version": 4
  }
}