Pith Number

pith:H2WLPI3V

pith:2026:H2WLPI3VUIAAKRY27YA64PLJRT

not attested not anchored not stored refs pending

Non-binary bottom-up constituency parsing without arity actions

Eunkyul Leah Jo, Jungyeul Park, Zihao Huang

arxiv:2607.10591 v1 · 2026-07-12 · 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{H2WLPI3VUIAAKRY27YA64PLJRT}

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	2026-07-14T01:21:22.755339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3eacb7a375a20005471afe01ee3d698cc478ae07052e974a28d113adad288064

Aliases

arxiv: 2607.10591 · arxiv_version: 2607.10591v1 · doi: 10.48550/arxiv.2607.10591 · pith_short_12: H2WLPI3VUIAA · pith_short_16: H2WLPI3VUIAAKRY2 · pith_short_8: H2WLPI3V

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/H2WLPI3VUIAAKRY27YA64PLJRT \
  | 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: 3eacb7a375a20005471afe01ee3d698cc478ae07052e974a28d113adad288064

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fffc559999a38c0b7a9232dae60f582bf331ab5d5f5a6d0aa34ad40379cd8cd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-07-12T06:07:29Z",
    "title_canon_sha256": "1ea558e51d10728708c251565ecb97304f237f4c7a499f8c5ab0d8ac14332ea8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.10591",
    "kind": "arxiv",
    "version": 1
  }
}