Pith Number

pith:PEMU67Y4

pith:2026:PEMU67Y4RGTUY6OG7ODF4LUG27

not attested not anchored not stored refs pending

GAP-MLLM: Geometry-Aligned Pre-training for Activating 3D Spatial Perception in Multimodal Large Language Models

Dave Zhenyu Chen, Haijie Li, Jiaxin Zhang, Junjun Jiang, Kui Jiang, Youyu Chen

arxiv:2603.16461 v2 · 2026-03-17 · 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{PEMU67Y4RGTUY6OG7ODF4LUG27}

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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.

Cited by

1 paper in Pith

SpatialFusion: Endowing Unified Image Generation with Intrinsic 3D Geometric Awareness

Receipt and verification

First computed	2026-07-21T01:21:43.687008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79194f7f1c89a74c79c6fb865e2e86d7d2f02d2676b323205c690c62440ac224

Aliases

arxiv: 2603.16461 · arxiv_version: 2603.16461v2 · doi: 10.48550/arxiv.2603.16461 · pith_short_12: PEMU67Y4RGTU · pith_short_16: PEMU67Y4RGTUY6OG · pith_short_8: PEMU67Y4

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/PEMU67Y4RGTUY6OG7ODF4LUG27 \
  | 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: 79194f7f1c89a74c79c6fb865e2e86d7d2f02d2676b323205c690c62440ac224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5511290aa761860acc7f7fdf49c4c020e107a90f01c8704d629f8de8181a1b97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-03-17T12:43:48Z",
    "title_canon_sha256": "114337600b0042500afa3e6b4c119bef5a46f903b186c5b10b266fc91aef4f72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.16461",
    "kind": "arxiv",
    "version": 2
  }
}