Pith Number

pith:Q5TO3UEW

pith:2026:Q5TO3UEWYJJMLRX35N4MRSBDR3

not attested not anchored not stored refs pending

HG-Bench: A Benchmark for Multi-Page Handwritten Answer-Region Grounding in Automated Homework Assessment

Boyan Shi, Canran Xiao, Chuangxin Zhao, Jiali Chen, Ji Qi, Juanzi Li, Jun Xia, Yanling Wang, Yan Wang, Yijian Lu

arxiv:2606.25491 v1 · 2026-06-24 · cs.CV · 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{Q5TO3UEWYJJMLRX35N4MRSBDR3}

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	2026-06-25T01:18:06.801879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8766edd096c252c5c6fbeb78c8c8238edae742d61ddccf17cc17a8137ad5017f

Aliases

arxiv: 2606.25491 · arxiv_version: 2606.25491v1 · doi: 10.48550/arxiv.2606.25491 · pith_short_12: Q5TO3UEWYJJM · pith_short_16: Q5TO3UEWYJJMLRX3 · pith_short_8: Q5TO3UEW

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/Q5TO3UEWYJJMLRX35N4MRSBDR3 \
  | 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: 8766edd096c252c5c6fbeb78c8c8238edae742d61ddccf17cc17a8137ad5017f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b385f10a2913fd03f51dc1f32a4a5e4fbd30423f74fcb13d8de622752e789e8",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-24T07:18:50Z",
    "title_canon_sha256": "547712735d2c4e7b9040cd598293d6e79536e9282fd5dbb508888a87dd8a80a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25491",
    "kind": "arxiv",
    "version": 1
  }
}