Pith Number

pith:XMBQB5SI

pith:2026:XMBQB5SIXQMDYEVYD3N5FLMQRO

not attested not anchored not stored refs pending

MetaRA: Metamorphic Robustness Assessment for Multimodal Large Language Model-based Visual Question Answering Systems

Chia-Wen Lin, Ling Zhou, Quanxing Xu, Rubing Huang, Xian Zhong, Xiaohua Huang, Yuhao Tian

arxiv:2605.19307 v1 · 2026-05-19 · 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{XMBQB5SIXQMDYEVYD3N5FLMQRO}

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	2026-05-20T01:05:38.624860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb0300f648bc183c12b81edbd2ad908b96aaf6942e23c7f2bf36d91ad40fde39

Aliases

arxiv: 2605.19307 · arxiv_version: 2605.19307v1 · doi: 10.48550/arxiv.2605.19307 · pith_short_12: XMBQB5SIXQMD · pith_short_16: XMBQB5SIXQMDYEVY · pith_short_8: XMBQB5SI

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/XMBQB5SIXQMDYEVYD3N5FLMQRO \
  | 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: bb0300f648bc183c12b81edbd2ad908b96aaf6942e23c7f2bf36d91ad40fde39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26bee447e4e9690690726a65aa6f6d173afe59e07260576a47d3507029b274c5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-19T03:37:54Z",
    "title_canon_sha256": "65e528e67dabc2fb582c864f0941e2cf0f89c170e170e82393a600bc0b91e474"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19307",
    "kind": "arxiv",
    "version": 1
  }
}