Pith Number

pith:JDRB2MUM

pith:2026:JDRB2MUMDXHPXALUJ5EPGKW35A

not attested not anchored not stored refs pending

Building Arabic NLP from the Ground Up: Twenty Years of Lessons, Failures, and Open Problems

Wajdi Zaghouani

arxiv:2605.20786 v1 · 2026-05-20 · 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{JDRB2MUMDXHPXALUJ5EPGKW35A}

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	2026-05-21T01:04:54.210178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48e21d328c1dcefb81744f48f32adbe828f86a88f251736db1111914a4ce5d02

Aliases

arxiv: 2605.20786 · arxiv_version: 2605.20786v1 · doi: 10.48550/arxiv.2605.20786 · pith_short_12: JDRB2MUMDXHP · pith_short_16: JDRB2MUMDXHPXALU · pith_short_8: JDRB2MUM

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/JDRB2MUMDXHPXALUJ5EPGKW35A \
  | 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: 48e21d328c1dcefb81744f48f32adbe828f86a88f251736db1111914a4ce5d02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab567b8c74115e04a1accd27850d70e71e32f6bf7c389ea560ce39edbd6a29ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-20T06:30:16Z",
    "title_canon_sha256": "c92fc95e817ea34dc7a7654a80bb4c484ec3a93f5e9f055331ff8b86ca2e5cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20786",
    "kind": "arxiv",
    "version": 1
  }
}