Pith Number

pith:VGJCYBQJ

pith:2023:VGJCYBQJD52BP7QWHFIGJB6AVZ

not attested not anchored not stored refs pending

Quiz-based Knowledge Tracing

Bihan Xu, Enhong Chen, Linbo Zhu, Qi Liu, Shuanghong Shen, Yu Su, Zhenya Huang

arxiv:2304.02413 v2 · 2023-04-05 · cs.AI · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGJCYBQJD52BP7QWHFIGJB6AVZ}

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	2026-07-05T05:58:42.172288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9922c06091f7417fe1639506487c0ae4c1759d756a76e2ccde9e72687a7d179

Aliases

arxiv: 2304.02413 · arxiv_version: 2304.02413v2 · doi: 10.48550/arxiv.2304.02413 · pith_short_12: VGJCYBQJD52B · pith_short_16: VGJCYBQJD52BP7QW · pith_short_8: VGJCYBQJ

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/VGJCYBQJD52BP7QWHFIGJB6AVZ \
  | 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: a9922c06091f7417fe1639506487c0ae4c1759d756a76e2ccde9e72687a7d179

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "674bc16c7694ddaa115279152d286c53423b77e4b16c0fab34395db637649b85",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2023-04-05T12:48:42Z",
    "title_canon_sha256": "755d04fdba7e8c7ee3fa610d6fc62dd2ea87391e34d4f95379e469cd34db84ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.02413",
    "kind": "arxiv",
    "version": 2
  }
}