Pith Number

pith:5JWW2FJC

pith:2026:5JWW2FJCK5NF4EGM4TBOVTHY2N

not attested not anchored not stored refs pending

Beyond Exact Match: How Evaluation Methodology Dominates Model Choice in LLM-Based Product Attribute Extraction

Ashvi Soni, Ayush Dwivedi

arxiv:2607.22949 v1 · 2026-07-24 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5JWW2FJCK5NF4EGM4TBOVTHY2N}

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	2026-07-28T00:22:03.726082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea6d6d1522575a5e10cce4c2eaccf8d34de787b0fd657e71d7270f81923f2e54

Aliases

arxiv: 2607.22949 · arxiv_version: 2607.22949v1 · doi: 10.48550/arxiv.2607.22949 · pith_short_12: 5JWW2FJCK5NF · pith_short_16: 5JWW2FJCK5NF4EGM · pith_short_8: 5JWW2FJC

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/5JWW2FJCK5NF4EGM4TBOVTHY2N \
  | 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: ea6d6d1522575a5e10cce4c2eaccf8d34de787b0fd657e71d7270f81923f2e54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb95ca9ec47765b2b027e7bdb3c2e48699407749e4cf82b53e90480f42a0ef5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-07-24T23:25:16Z",
    "title_canon_sha256": "d6c683ca6be323d824f041e800d4e388f976648c8129d4d614c1b895e759bfd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22949",
    "kind": "arxiv",
    "version": 1
  }
}