Pith Number

pith:VEFWVUPF

pith:2019:VEFWVUPFXYD2HC6NJCZS6J2IRT

not attested not anchored not stored refs pending

Towards Unsupervised Grammatical Error Correction using Statistical Machine Translation with Synthetic Comparable Corpus

Mamoru Komachi, Satoru Katsumata

arxiv:1907.09724 v1 · 2019-07-23 · 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{VEFWVUPFXYD2HC6NJCZS6J2IRT}

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	2026-05-17T23:39:50.273452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a90b6ad1e5be07a38bcd48b32f27488cf31a91f8db00d367bf2953f7265c1d12

Aliases

arxiv: 1907.09724 · arxiv_version: 1907.09724v1 · doi: 10.48550/arxiv.1907.09724 · pith_short_12: VEFWVUPFXYD2 · pith_short_16: VEFWVUPFXYD2HC6N · pith_short_8: VEFWVUPF

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/VEFWVUPFXYD2HC6NJCZS6J2IRT \
  | 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: a90b6ad1e5be07a38bcd48b32f27488cf31a91f8db00d367bf2953f7265c1d12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3062a931f30d8deb40ecde633ae5659c1b54a933928e8775afaa8638c457ff20",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-07-23T07:15:23Z",
    "title_canon_sha256": "712815fa54e1803a41f184b5aee9993c7b4c4ca256ea1c57998740e1537b3e80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09724",
    "kind": "arxiv",
    "version": 1
  }
}