Pith Number

pith:H2BKHGBV

pith:2020:H2BKHGBVB4SC6HJYSDMXXJKPJN

not attested not anchored not stored refs pending

Classifying Syntactic Errors in Learner Language

Dmitry Nikolaev, Leshem Choshen, Omri Abend, Yevgeni Berzak

arxiv:2010.11032 v2 · 2020-10-21 · 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{H2BKHGBVB4SC6HJYSDMXXJKPJN}

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	2026-07-05T01:46:28.104548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e82a398350f242f1d3890d97ba54f4b5b38dd87f3d17c0685370c0e1a141296

Aliases

arxiv: 2010.11032 · arxiv_version: 2010.11032v2 · doi: 10.48550/arxiv.2010.11032 · pith_short_12: H2BKHGBVB4SC · pith_short_16: H2BKHGBVB4SC6HJY · pith_short_8: H2BKHGBV

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/H2BKHGBVB4SC6HJYSDMXXJKPJN \
  | 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: 3e82a398350f242f1d3890d97ba54f4b5b38dd87f3d17c0685370c0e1a141296

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87b706f13851ebb40faa1f7749ad673e30023c49a791818fca11e15a694ac8bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-10-21T14:28:22Z",
    "title_canon_sha256": "6c0ba380008d6521078fc291f82298e24325a6bbbca1c08470dc0491beb23757"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.11032",
    "kind": "arxiv",
    "version": 2
  }
}