Pith Number

pith:2Y4XBD6F

pith:2024:2Y4XBD6FM4CCNV5MLD6SMYMJP7

not attested not anchored not stored refs pending

Using LLMs for the Extraction and Normalization of Product Attribute Values

Alexander Brinkmann, Christian Bizer, Nick Baumann

arxiv:2403.02130 v4 · 2024-03-04 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Y4XBD6FM4CCNV5MLD6SMYMJP7}

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	2026-07-05T09:01:30.603377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d639708fc5670426d7ac58fd2661897ffa2ff3a93eab5fbf3de73973b50ec5d2

Aliases

arxiv: 2403.02130 · arxiv_version: 2403.02130v4 · doi: 10.48550/arxiv.2403.02130 · pith_short_12: 2Y4XBD6FM4CC · pith_short_16: 2Y4XBD6FM4CCNV5M · pith_short_8: 2Y4XBD6F

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/2Y4XBD6FM4CCNV5MLD6SMYMJP7 \
  | 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: d639708fc5670426d7ac58fd2661897ffa2ff3a93eab5fbf3de73973b50ec5d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eff1c7646ce07aca0969772f4cb0e2b24aeec1403cf61f3bba4793128d92d02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-03-04T15:39:59Z",
    "title_canon_sha256": "28a2735f330637156c393020619f42681b4bd7c099cba284d174b34e12083a3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.02130",
    "kind": "arxiv",
    "version": 4
  }
}