Pith Number

pith:LSNYZ647

pith:2018:LSNYZ647IKLXPRUWGYZTL5B3JR

not attested not anchored not stored refs pending

A Portuguese Native Language Identification Dataset

Iria del R\'io, Marcos Zampieri, Shervin Malmasi

arxiv:1804.11346 v1 · 2018-04-30 · 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{LSNYZ647IKLXPRUWGYZTL5B3JR}

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	2026-05-18T00:17:13.948436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c9b8cfb9f429777c696363335f43b4c4a56c05f61cc4b7466dc077a6781225c

Aliases

arxiv: 1804.11346 · arxiv_version: 1804.11346v1 · doi: 10.48550/arxiv.1804.11346 · pith_short_12: LSNYZ647IKLX · pith_short_16: LSNYZ647IKLXPRUW · pith_short_8: LSNYZ647

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/LSNYZ647IKLXPRUWGYZTL5B3JR \
  | 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: 5c9b8cfb9f429777c696363335f43b4c4a56c05f61cc4b7466dc077a6781225c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6860813b37cac754e85a506d61c8daef8a05815d18b20a1151cee35f3716be5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-04-30T17:52:28Z",
    "title_canon_sha256": "92ea1803d0dd2b00069e1461372564f012e2b626f42e6860990dd9f1ebe21baf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.11346",
    "kind": "arxiv",
    "version": 1
  }
}