Pith Number

pith:W4UMLZS3

pith:2025:W4UMLZS3F5YLBIDTD6I47ISWV5

not attested not anchored not stored refs pending

BR-TaxQA-R: A Dataset for Question Answering with References for Brazilian Personal Income Tax Law, including case law

Andre Assump\c{c}\~ao, Augusto Faria, Diedre Carmo, Erick de Brito, E. Seiti de Oliveira, Jayr Pereira, Juvenal Domingos J\'unior, Matheus Teotonio, Roberto Lotufo

arxiv:2505.15916 v1 · 2025-05-21 · 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{W4UMLZS3F5YLBIDTD6I47ISWV5}

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	2026-07-05T11:07:27.365670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b728c5e65b2f70b0a0731f91cfa256af64cb2c191f6a23107ef47741d8c75b9b

Aliases

arxiv: 2505.15916 · arxiv_version: 2505.15916v1 · doi: 10.48550/arxiv.2505.15916 · pith_short_12: W4UMLZS3F5YL · pith_short_16: W4UMLZS3F5YLBIDT · pith_short_8: W4UMLZS3

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/W4UMLZS3F5YLBIDTD6I47ISWV5 \
  | 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: b728c5e65b2f70b0a0731f91cfa256af64cb2c191f6a23107ef47741d8c75b9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd898531edb8b82136e01b9fe4420d816ce1eed06956499e1b0225197c4de015",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-05-21T18:11:41Z",
    "title_canon_sha256": "0b0028e42d8a68d177aadba6df6a434e9329d4c9ead630eed13a5d824a0ffb0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.15916",
    "kind": "arxiv",
    "version": 1
  }
}