Pith Number

pith:LB2KA2KZ

pith:2026:LB2KA2KZNMHYA45QANV4BEQP5Y

not attested not anchored not stored refs pending

Do Maps Still Matter for Machines: Revisiting the Role of Choropleth Maps in Foundation Model Spatial Understanding

Chao He, Chunbo Liu, Hua Liao, Weihua Dong, Wenjia Xu, Yonghe Sun, Zhenjia Liu, Zhiwei Wei

arxiv:2607.17999 v1 · 2026-07-20 · cs.AI · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LB2KA2KZNMHYA45QANV4BEQP5Y}

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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	2026-07-21T02:22:11.154267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5874a069596b0f8073b0036bc0920fee3676385dd567ee4a3ae17aa73ce18d6a

Aliases

arxiv: 2607.17999 · arxiv_version: 2607.17999v1 · doi: 10.48550/arxiv.2607.17999 · pith_short_12: LB2KA2KZNMHY · pith_short_16: LB2KA2KZNMHYA45Q · pith_short_8: LB2KA2KZ

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/LB2KA2KZNMHYA45QANV4BEQP5Y \
  | 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: 5874a069596b0f8073b0036bc0920fee3676385dd567ee4a3ae17aa73ce18d6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bbc3852ce2b27e2670bcc9b27a8de94ba64a2ce81c06798f121f883cd5d037c",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-20T14:32:10Z",
    "title_canon_sha256": "565660e325fb33a665c8fbe856eff2624cbbe945c517a5ea8541f9a5b7e93089"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17999",
    "kind": "arxiv",
    "version": 1
  }
}