Pith Number

pith:CMMVPEOO

pith:2021:CMMVPEOOBEGATVKHKNEY4HW2VG

not attested not anchored not stored refs pending

BERTa\'u: Ita\'u BERT for digital customer service

Alex F. Mansano, Gustavo T. Ferreira, Jos\'e Di\'e Viegas, Paulo Finardi, Vinicius F. Carid\'a

arxiv:2101.12015 v3 · 2021-01-28 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CMMVPEOOBEGATVKHKNEY4HW2VG}

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	2026-07-05T03:00:31.507021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94

Aliases

arxiv: 2101.12015 · arxiv_version: 2101.12015v3 · doi: 10.48550/arxiv.2101.12015 · pith_short_12: CMMVPEOOBEGA · pith_short_16: CMMVPEOOBEGATVKH · pith_short_8: CMMVPEOO

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/CMMVPEOOBEGATVKHKNEY4HW2VG \
  | 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: 13195791ce090c09d54753498e1edaa98972f08c0aaf51eab9063235035d8e94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d43ce292f782077f6c3689c1d05af846fbe478b09dc7a63636b4470dd67de81b",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-01-28T14:29:03Z",
    "title_canon_sha256": "bfc92f9ce71c5424f81ed257e34e98dfeeda05d9c51284f073a6e436de71bf4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.12015",
    "kind": "arxiv",
    "version": 3
  }
}