Pith Number

pith:VESSBQKW

pith:2026:VESSBQKWWAMMPR4MSZH4IP3ZK5

not attested not anchored not stored refs pending

SPACENUM: Revisiting Spatial Numerical Understanding in VLMs

Bingyang Wang, Han Liu, Haoran Lu, Huifeixin Chen, Jianshu Zhang, Letian Xue, Yijiang Li

arxiv:2605.23898 v1 · 2026-05-22 · 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{VESSBQKWWAMMPR4MSZH4IP3ZK5}

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	2026-05-25T02:02:38.431206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a92520c156b018c7c78c964fc43f795768e2bc159c1e987253fe69226523a575

Aliases

arxiv: 2605.23898 · arxiv_version: 2605.23898v1 · doi: 10.48550/arxiv.2605.23898 · pith_short_12: VESSBQKWWAMM · pith_short_16: VESSBQKWWAMMPR4M · pith_short_8: VESSBQKW

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/VESSBQKWWAMMPR4MSZH4IP3ZK5 \
  | 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: a92520c156b018c7c78c964fc43f795768e2bc159c1e987253fe69226523a575

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08ea44ed1f683773359d23f0eb0b0dc2ae1a8d83c254750230faaafab4f73e6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-22T17:58:36Z",
    "title_canon_sha256": "cb2f455e5509e27fe65db1cfcaf2806068e784155150f4d3b25266248010e7be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23898",
    "kind": "arxiv",
    "version": 1
  }
}