Pith Number

pith:HI7OBLFC

pith:2025:HI7OBLFCMDLGNJHEYDCW4YEMCK

not attested not anchored not stored refs pending

MM-Spatial: Exploring 3D Spatial Understanding in Multimodal LLMs

Afshin Dehghan, David Griffiths, Erik Daxberger, Gefen Kohavi, Haiming Gang, Justin Lazarow, Kai Kang, Marcin Eichner, Nina Wenzel, Peter Grasch, Yinfei Yang

arxiv:2503.13111 v2 · 2025-03-17 · cs.CV · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HI7OBLFCMDLGNJHEYDCW4YEMCK}

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.

Cited by

5 papers in Pith

SpaCE: Rethinking Spatial Capacity and Generalization in Multi-Frame Multimodal Large Language Models

Decodable Is Not Grounded: A Vision-Ablation Arbiter for VLM Spatial Reasoning

Lost in Space? Vision-Language Models Struggle with Relative Camera Pose Estimation

Multimodal Language Models Cannot Spot Spatial Inconsistencies

World2VLM: Distilling World Model Imagination into VLMs for Dynamic Spatial Reasoning

Receipt and verification

First computed	2026-07-05T12:06:08.179507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a3ee0aca260d666a4e4c0c56e608c1281e84374354ab3cd3db0299f6dec23d4

Aliases

arxiv: 2503.13111 · arxiv_version: 2503.13111v2 · doi: 10.48550/arxiv.2503.13111 · pith_short_12: HI7OBLFCMDLG · pith_short_16: HI7OBLFCMDLGNJHE · pith_short_8: HI7OBLFC

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/HI7OBLFCMDLGNJHEYDCW4YEMCK \
  | 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: 3a3ee0aca260d666a4e4c0c56e608c1281e84374354ab3cd3db0299f6dec23d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0642e52074cd9a9edfe00b244ad4161c371bc728efe9a2d2b558a624be4d1f34",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-03-17T12:34:22Z",
    "title_canon_sha256": "2383193acf61fcea15f4cff1fdc5cb27881882dc1bd85f3f053c6279effbbe39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.13111",
    "kind": "arxiv",
    "version": 2
  }
}