Pith Number

pith:7O3WDLLJ

pith:2025:7O3WDLLJCTNT25AYOGX6L6S7NH

not attested not anchored not stored refs pending

UD-English-CHILDES: A Collected Resource of Gold and Silver Universal Dependencies Trees for Child Language Interactions

Lanni Bu, Nathan Schneider, Xiulin Yang, Zhuoxuan Ju, Zoey Liu

arxiv:2504.20304 v3 · 2025-04-28 · cs.CL · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7O3WDLLJCTNT25AYOGX6L6S7NH}

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	2026-07-05T11:23:27.824697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbb761ad6914db3d741871afe5fa5f69df689b8a340c71b867adfd83734d79dc

Aliases

arxiv: 2504.20304 · arxiv_version: 2504.20304v3 · doi: 10.48550/arxiv.2504.20304 · pith_short_12: 7O3WDLLJCTNT · pith_short_16: 7O3WDLLJCTNT25AY · pith_short_8: 7O3WDLLJ

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/7O3WDLLJCTNT25AYOGX6L6S7NH \
  | 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: fbb761ad6914db3d741871afe5fa5f69df689b8a340c71b867adfd83734d79dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c2e3d493ec822702d0cac240eaad8a135db83487d391fdf97b4e9fe618a7484",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-28T23:20:36Z",
    "title_canon_sha256": "ebbc1dae87aeaa4daf396500db87f92848758859ddbd9504c804539f494a9fa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20304",
    "kind": "arxiv",
    "version": 3
  }
}