Pith Number

pith:7JSARSGY

pith:2013:7JSARSGYKI62P7PCXBJCZ7NNG3

not attested not anchored not stored refs pending

PyPLN: a Distributed Platform for Natural Language Processing

\'Alvaro Justen, Fl\'avio Amieiro, Fl\'avio Code\c{c}o Coelho, Heliana Mello, Renato Rocha Souza

arxiv:1301.7738 v2 · 2013-01-31 · cs.CL · 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{7JSARSGYKI62P7PCXBJCZ7NNG3}

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	2026-05-18T03:33:13.437417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa6408c8d8523da7fde2b8522cfdad36df78083dbfd0d68a6c87259a7036a6b7

Aliases

arxiv: 1301.7738 · arxiv_version: 1301.7738v2 · doi: 10.48550/arxiv.1301.7738 · pith_short_12: 7JSARSGYKI62 · pith_short_16: 7JSARSGYKI62P7PC · pith_short_8: 7JSARSGY

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/7JSARSGYKI62P7PCXBJCZ7NNG3 \
  | 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: fa6408c8d8523da7fde2b8522cfdad36df78083dbfd0d68a6c87259a7036a6b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92a300d0f2561e7a263a4b7310242ec4045ca1b444e78e452c2ae8f027bcd953",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-01-31T20:21:52Z",
    "title_canon_sha256": "8bdca9340aa31b6095e781dae3750c0404d563567df5d29dc33100cae1ede097"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7738",
    "kind": "arxiv",
    "version": 2
  }
}