Pith Number

pith:IXEZ2DTH

pith:2026:IXEZ2DTHTKSS3U5IZRVCM5Q7KG

not attested not anchored not stored refs pending

Reducing Hallucination in Vision-Language Models via Stage-wise Preference Optimization under Distribution Shift

Qinwu Xu

arxiv:2605.16411 v1 · 2026-05-13 · cs.CV · cs.AI · cs.CL · cs.DB · 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{IXEZ2DTHTKSS3U5IZRVCM5Q7KG}

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	2026-05-20T00:02:20.940378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45c99d0e679aa52dd3a8cc6a26761f5197e3835541385a743db5f3cecd9dc46b

Aliases

arxiv: 2605.16411 · arxiv_version: 2605.16411v1 · doi: 10.48550/arxiv.2605.16411 · pith_short_12: IXEZ2DTHTKSS · pith_short_16: IXEZ2DTHTKSS3U5I · pith_short_8: IXEZ2DTH

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/IXEZ2DTHTKSS3U5IZRVCM5Q7KG \
  | 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: 45c99d0e679aa52dd3a8cc6a26761f5197e3835541385a743db5f3cecd9dc46b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc595eb412fd72ea19196e81c9111a51f261fde757aba03c2e8f5061d4af12ef",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.DB",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-05-13T15:37:51Z",
    "title_canon_sha256": "b7e28bd1b5206b17ee1ac8ab61fc372c4e4819d8eaac63915679028baf21fbc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16411",
    "kind": "arxiv",
    "version": 1
  }
}