Pith Number

pith:3A7QCCMK

pith:2012:3A7QCCMK3KRYU6ODXOZQDOQFI7

not attested not anchored not stored refs pending

Arabic CALL system based on pedagogically indexed text

Dhaou El Ghoul, Mohamed Achraf Ben Mohamed, Mohamed Amine Nahdi, Mounir Zrigui, Mourad Mars

arxiv:1207.2373 v1 · 2012-07-10 · 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{3A7QCCMK3KRYU6ODXOZQDOQFI7}

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	2026-05-18T03:51:24.255048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d83f01098adaa38a79c3bbb301ba0547f48e3790a4597b40151c8cd2dd806842

Aliases

arxiv: 1207.2373 · arxiv_version: 1207.2373v1 · doi: 10.48550/arxiv.1207.2373 · pith_short_12: 3A7QCCMK3KRY · pith_short_16: 3A7QCCMK3KRYU6OD · pith_short_8: 3A7QCCMK

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/3A7QCCMK3KRYU6ODXOZQDOQFI7 \
  | 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: d83f01098adaa38a79c3bbb301ba0547f48e3790a4597b40151c8cd2dd806842

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d642a0e320eafdf13c74190e3c58812690045c7db58eaaaae1a0bb867bf4599c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2012-07-10T14:34:24Z",
    "title_canon_sha256": "7fbfa8bc20491475d5ce9500be8d7bf3c162833a636cd8364633d0673eb8d96d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2373",
    "kind": "arxiv",
    "version": 1
  }
}