Pith Number

pith:PD7QXEJX

pith:2026:PD7QXEJXV6JTVZAGWACWWIUKFN

not attested not anchored not stored refs pending

P\textsuperscript{2}-DPO: Grounding Hallucination in Perceptual Processing via Calibration Direct Preference Optimization

C. L. Philip Chen, Haozhang Yuan, Ruipeng Zhang, Tong Zhang, Zhihao Li

arxiv:2606.03376 v1 · 2026-06-02 · cs.CV · cs.AI · 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{PD7QXEJXV6JTVZAGWACWWIUKFN}

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	2026-06-03T01:05:56.307732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78ff0b9137af933ae406b0056b228a2b49759d849b61db030ba4d9b2404c828b

Aliases

arxiv: 2606.03376 · arxiv_version: 2606.03376v1 · doi: 10.48550/arxiv.2606.03376 · pith_short_12: PD7QXEJXV6JT · pith_short_16: PD7QXEJXV6JTVZAG · pith_short_8: PD7QXEJX

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/PD7QXEJXV6JTVZAGWACWWIUKFN \
  | 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: 78ff0b9137af933ae406b0056b228a2b49759d849b61db030ba4d9b2404c828b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58fe9fddba2bab50417daa3f7868c28fa7b0faeb46241cda521fbad489cbd384",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-02T09:22:53Z",
    "title_canon_sha256": "d44294d937d58eb14e3e2a23dc25abbdac2187a9da9371465966c5b4a6cf626c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.03376",
    "kind": "arxiv",
    "version": 1
  }
}