Pith Number

pith:ESF2D4AZ

pith:2015:ESF2D4AZYZB6EPU4BNIEAZZ3RV

not attested not anchored not stored refs pending

Early text classification: a Naive solution

Hugo Jair Escalante, Luis Villase\~nor-Pineda, Manuel Montes-y-G\'omez, Marcelo Luis Errecalde

arxiv:1509.06053 v1 · 2015-09-20 · 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{ESF2D4AZYZB6EPU4BNIEAZZ3RV}

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	2026-05-18T01:32:35.983572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

248ba1f019c643e23e9c0b5040673b8d5c34821b6efce820296d30a7d9b970da

Aliases

arxiv: 1509.06053 · arxiv_version: 1509.06053v1 · doi: 10.48550/arxiv.1509.06053 · pith_short_12: ESF2D4AZYZB6 · pith_short_16: ESF2D4AZYZB6EPU4 · pith_short_8: ESF2D4AZ

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/ESF2D4AZYZB6EPU4BNIEAZZ3RV \
  | 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: 248ba1f019c643e23e9c0b5040673b8d5c34821b6efce820296d30a7d9b970da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dee6b92513c98361358570aaa6127bf82d3370646b866ad8488d0f8bc256b4e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-09-20T21:01:51Z",
    "title_canon_sha256": "c4e3848e23944aceb4772e5f9fc4f9f7f8c44cad21148dc085c6aa2b2466b247"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06053",
    "kind": "arxiv",
    "version": 1
  }
}