Pith Number

pith:EUGZQ2GA

pith:2026:EUGZQ2GAP3Y3J6LU75KXY6AZO3

not attested not anchored not stored refs pending

Beyond String Matching: Semantic Evaluation of PDF Table Extraction

Janis Keuper, Pius Horn

arxiv:2603.18652 v2 · 2026-03-19 · cs.CV · cs.AI · 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{EUGZQ2GAP3Y3J6LU75KXY6AZO3}

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	2026-06-02T03:04:40.495944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

250d9868c07ef1b4f974ff557c781976f4fe8ea0885753bc05928fe048affd3f

Aliases

arxiv: 2603.18652 · arxiv_version: 2603.18652v2 · doi: 10.48550/arxiv.2603.18652 · pith_short_12: EUGZQ2GAP3Y3 · pith_short_16: EUGZQ2GAP3Y3J6LU · pith_short_8: EUGZQ2GA

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/EUGZQ2GAP3Y3J6LU75KXY6AZO3 \
  | 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: 250d9868c07ef1b4f974ff557c781976f4fe8ea0885753bc05928fe048affd3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d0c4ab16ef3f69a6da3bbc423ef3c781d612231954874f2c9cd8edd72dc49d6",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-03-19T09:17:21Z",
    "title_canon_sha256": "97ab1849e0173f8236e0a5182e708e456b4f5250ad019259cd3ba0f13e9e44a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.18652",
    "kind": "arxiv",
    "version": 2
  }
}