Pith Number

pith:3HT4RL7P

pith:2025:3HT4RL7PCWBWMZVHPDXFRCFCUW

not attested not anchored not stored refs pending

From No to Know: Taxonomy, Challenges, and Opportunities for Negation Understanding in Multimodal Foundation Models

Aparna Bharati, Mayank Vatsa, Richa Singh, Surbhi Mittal

arxiv:2502.09645 v1 · 2025-02-10 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3HT4RL7PCWBWMZVHPDXFRCFCUW}

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	2026-07-05T10:14:09.849650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9e7c8afef15836666a778ee5888a2a5991194b7d778aa39961a509716303ecb

Aliases

arxiv: 2502.09645 · arxiv_version: 2502.09645v1 · doi: 10.48550/arxiv.2502.09645 · pith_short_12: 3HT4RL7PCWBW · pith_short_16: 3HT4RL7PCWBWMZVH · pith_short_8: 3HT4RL7P

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/3HT4RL7PCWBWMZVHPDXFRCFCUW \
  | 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: d9e7c8afef15836666a778ee5888a2a5991194b7d778aa39961a509716303ecb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcc90746f826c74dfa3f0bfff1d40d11d22a0a7e652a125f0521ed5b6d39c6c3",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-02-10T16:55:13Z",
    "title_canon_sha256": "d5142d2a324c8dab15c2ae1018d369475999c9eda447bd2adfca8adcd109b3b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.09645",
    "kind": "arxiv",
    "version": 1
  }
}