Pith Number

pith:YFMYQMUO

pith:2018:YFMYQMUOFJTL56GOVJGBX7C5OA

not attested not anchored not stored refs pending

Automatic Metric Validation for Grammatical Error Correction

Leshem Choshen, Omri Abend

arxiv:1804.11225 v2 · 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{YFMYQMUOFJTL56GOVJGBX7C5OA}

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	2026-05-18T00:16:41.778379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c15988328e2a66bef8ceaa4c1bfc5d701511471350bb965eb142e809669d4984

Aliases

arxiv: 1804.11225 · arxiv_version: 1804.11225v2 · doi: 10.48550/arxiv.1804.11225 · pith_short_12: YFMYQMUOFJTL · pith_short_16: YFMYQMUOFJTL56GO · pith_short_8: YFMYQMUO

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/YFMYQMUOFJTL56GOVJGBX7C5OA \
  | 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: c15988328e2a66bef8ceaa4c1bfc5d701511471350bb965eb142e809669d4984

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "418026004fb91df48df628ded63f98bfa6d2393e1871b8e93a2e3073a73ebccd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-04-30T14:17:36Z",
    "title_canon_sha256": "d53d5c3b24fdeb38c2b713568af0ec3f76bd746c11d351b87994b4cf7affe746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.11225",
    "kind": "arxiv",
    "version": 2
  }
}