Pith Number

pith:NBJN2MEO

pith:2026:NBJN2MEOJ3Q65JX7UUQ4WYGQF5

not attested not anchored not stored refs pending

Groc-PO: Grounded Context Preference Optimization for Truthful Multimodal LLMs

Chunxiao Liu, Dongming Zhang, Zhendong Mao, Zheren Fu, Zhixiao Zheng, Zhiyuan Yao

arxiv:2607.13712 v1 · 2026-07-15 · cs.CV · cs.AI · cs.CL · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBJN2MEOJ3Q65JX7UUQ4WYGQF5}

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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.

Receipt and verification

First computed	2026-07-16T01:23:02.499145Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6852dd308e4ee1eea6ffa521cb60d02f6872514886272e8f56b40450b1d6759f

Aliases

arxiv: 2607.13712 · arxiv_version: 2607.13712v1 · doi: 10.48550/arxiv.2607.13712 · pith_short_12: NBJN2MEOJ3Q6 · pith_short_16: NBJN2MEOJ3Q65JX7 · pith_short_8: NBJN2MEO

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/NBJN2MEOJ3Q65JX7UUQ4WYGQF5 \
  | 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: 6852dd308e4ee1eea6ffa521cb60d02f6872514886272e8f56b40450b1d6759f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ad34ad1a288b01e0fdae413cec8fa2cdf93343773d37a9261696b6ea4838164",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-15T11:28:27Z",
    "title_canon_sha256": "81952ddbaa71160c2c1d1388ec864d4e0bcfa725e173ee85a0d62b6c9ba26a09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13712",
    "kind": "arxiv",
    "version": 1
  }
}