Pith Number

pith:X6UACLXY

pith:2021:X6UACLXYMDPPULJZZY7CWEFLOG

not attested not anchored not stored refs pending

Pedagogical Word Recommendation: A novel task and dataset on personalized vocabulary acquisition for L2 learners

Jamin Shin, Juneyoung Park

arxiv:2112.13808 v2 · 2021-12-27 · 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{X6UACLXYMDPPULJZZY7CWEFLOG}

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	2026-07-05T03:44:16.541347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfa8012ef860defa2d39ce3e2b10ab71bc349f118546094f50d9ef2eedb36317

Aliases

arxiv: 2112.13808 · arxiv_version: 2112.13808v2 · doi: 10.48550/arxiv.2112.13808 · pith_short_12: X6UACLXYMDPP · pith_short_16: X6UACLXYMDPPULJZ · pith_short_8: X6UACLXY

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/X6UACLXYMDPPULJZZY7CWEFLOG \
  | 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: bfa8012ef860defa2d39ce3e2b10ab71bc349f118546094f50d9ef2eedb36317

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99340c21df544ef726798e673eef099753d4c9c76969194a64718659f07dbc95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-12-27T17:52:48Z",
    "title_canon_sha256": "b48537ab3fac98a11c32de9d2f74d266f690af0a6b83a8686d9675dcf9f036ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.13808",
    "kind": "arxiv",
    "version": 2
  }
}