Pith Number

pith:CWKVMUSH

pith:2017:CWKVMUSHS74A3VZOLQV32X64YJ

not attested not anchored not stored refs pending

Native Language Identification using Stacked Generalization

Mark Dras, Shervin Malmasi

arxiv:1703.06541 v1 · 2017-03-19 · 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{CWKVMUSHS74A3VZOLQV32X64YJ}

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	2026-05-18T00:48:22.557303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

159556524797f80dd72e5c2bbd5fdcc2540511facc6a138a62848941efeddc00

Aliases

arxiv: 1703.06541 · arxiv_version: 1703.06541v1 · doi: 10.48550/arxiv.1703.06541 · pith_short_12: CWKVMUSHS74A · pith_short_16: CWKVMUSHS74A3VZO · pith_short_8: CWKVMUSH

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/CWKVMUSHS74A3VZOLQV32X64YJ \
  | 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: 159556524797f80dd72e5c2bbd5fdcc2540511facc6a138a62848941efeddc00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd87a2b33a8ef4c5405bd94143966dc81583e116db94dfdb618dd8f185b08b4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-03-19T23:42:28Z",
    "title_canon_sha256": "bd0bd204b9d340d0609ce2ae18d577565af6e37d6614e51d75b77a8da246c7d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.06541",
    "kind": "arxiv",
    "version": 1
  }
}