Pith Number

pith:VQNVN667

pith:2016:VQNVN667LKLZZD5N6LP434TRSB

not attested not anchored not stored refs pending

Universal Dependencies for Learner English

Boris Katz, Carolyn Spadine, Jessica Kenney, Jing Xian Wang, Keiko Sophie Mori, Lucia Lam, Sebastian Garza, Yevgeni Berzak

arxiv:1605.04278 v2 · 2016-05-13 · 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{VQNVN667LKLZZD5N6LP434TRSB}

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	2026-05-18T01:12:41.818656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac1b56fbdf5a979c8fadf2dfcdf2719065fa99afde6ee87354e4bf4dba686c4d

Aliases

arxiv: 1605.04278 · arxiv_version: 1605.04278v2 · doi: 10.48550/arxiv.1605.04278 · pith_short_12: VQNVN667LKLZ · pith_short_16: VQNVN667LKLZZD5N · pith_short_8: VQNVN667

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/VQNVN667LKLZZD5N6LP434TRSB \
  | 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: ac1b56fbdf5a979c8fadf2dfcdf2719065fa99afde6ee87354e4bf4dba686c4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6fd399cd50355fe9db1332c9f9bb20e620f5b5a2965c5ed6d3c6e8ce3ddd3eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-05-13T18:45:22Z",
    "title_canon_sha256": "b4dcce48c9e8e9240f552cde548cf1b83640e636a29140927db27fcc2846b36f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04278",
    "kind": "arxiv",
    "version": 2
  }
}