Pith Number

pith:IX4C25A2

pith:2025:IX4C25A2S22BKBFY22HEJ55L4B

not attested not anchored not stored refs pending

CoGrader: Transforming Instructors' Assessment of Project Reports through Collaborative LLM Integration

Chuhan Shi, Haobo Li, Huamin Qu, Jiachen Wang, Rong Zhang, Yumeng Li, Zixin Chen

arxiv:2507.20655 v2 · 2025-07-28 · 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{IX4C25A2S22BKBFY22HEJ55L4B}

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	2026-07-05T11:54:49.968716Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45f82d741a96b41504b8d68e44f7abe06ead522a690dd09553bfff4ab6ff99d6

Aliases

arxiv: 2507.20655 · arxiv_version: 2507.20655v2 · doi: 10.48550/arxiv.2507.20655 · pith_short_12: IX4C25A2S22B · pith_short_16: IX4C25A2S22BKBFY · pith_short_8: IX4C25A2

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/IX4C25A2S22BKBFY22HEJ55L4B \
  | 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: 45f82d741a96b41504b8d68e44f7abe06ead522a690dd09553bfff4ab6ff99d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51eb5495c85c965cf0e034af98255a07a8b227375cc54be70a8c29c4d4ffe4ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2025-07-28T09:21:33Z",
    "title_canon_sha256": "36efbfe0e0eaf73e97a21ba4f83508fcff2ccc07e3e055a3a389223c13b11984"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.20655",
    "kind": "arxiv",
    "version": 2
  }
}