Pith Number

pith:4CBJVLHP

pith:2023:4CBJVLHPRZ6UHTCPPRHDG4KLAL

not attested not anchored not stored refs pending

MoocRadar: A Fine-grained and Multi-aspect Knowledge Repository for Improving Cognitive Student Modeling in MOOCs

Hai-Tao Zheng, Jie Tang, Jifan Yu, Juanzi Li, Lei Hou, Manli Li, Mengying Lu, Qingyang Zhong, Shangqing Tu, Xiaoya Li, Zhengshan Liao, Zijun Yao

arxiv:2304.02205 v1 · 2023-04-05 · cs.AI · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CBJVLHPRZ6UHTCPPRHDG4KLAL}

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	2026-07-05T05:58:23.190071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0829aacef8e7d43cc4f7c4e33714b02d6a7e3692ab50739f0ba7fc73ce8bb76

Aliases

arxiv: 2304.02205 · arxiv_version: 2304.02205v1 · doi: 10.48550/arxiv.2304.02205 · pith_short_12: 4CBJVLHPRZ6U · pith_short_16: 4CBJVLHPRZ6UHTCP · pith_short_8: 4CBJVLHP

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/4CBJVLHPRZ6UHTCPPRHDG4KLAL \
  | 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: e0829aacef8e7d43cc4f7c4e33714b02d6a7e3692ab50739f0ba7fc73ce8bb76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc6164639772ef7a2d89d793a7fece7aa9ed8d97c74d00f24f7f4def463a908f",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2023-04-05T03:36:40Z",
    "title_canon_sha256": "f7c2c5cc8f7e612ebf399b16607f3eb0a3f28abe11f1d5c16fe375c41b44e141"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.02205",
    "kind": "arxiv",
    "version": 1
  }
}