Pith Number

pith:HK6SFLV5

pith:2019:HK6SFLV57K6KLXEGF2G6WHVSM3

not attested not anchored not stored refs pending

Dolphin: A Spoken Language Proficiency Assessment System for Elementary Education

Chaoyou Guo, Cong Kong, Gale Yan Huang, Guowei Xu, Songfan Yang, Tianqiao Liu, Weiping Fu, Wenbiao Ding, Yujia Song, Zitao Liu

arxiv:1908.00358 v3 · 2019-08-01 · cs.CL · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HK6SFLV57K6KLXEGF2G6WHVSM3}

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	2026-07-05T00:37:07.638212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3abd22aebdfabca5dc862e8deb1eb266e8a089b5d964cf9adcc0516c0365f943

Aliases

arxiv: 1908.00358 · arxiv_version: 1908.00358v3 · doi: 10.48550/arxiv.1908.00358 · pith_short_12: HK6SFLV57K6K · pith_short_16: HK6SFLV57K6KLXEG · pith_short_8: HK6SFLV5

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/HK6SFLV57K6KLXEGF2G6WHVSM3 \
  | 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: 3abd22aebdfabca5dc862e8deb1eb266e8a089b5d964cf9adcc0516c0365f943

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e60553d92f131b00aa96ee75e393fde30731f580fcd1903936f6e3dab73121b",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-01T12:31:49Z",
    "title_canon_sha256": "ece26ed56e0f76f3a4c6140782efd2af861905e7848fc035a195d90b2a5680c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.00358",
    "kind": "arxiv",
    "version": 3
  }
}