Pith Number

pith:EIBI3PUW

pith:2017:EIBI3PUWBOZCMX2IHCRKJ33WGH

not attested not anchored not stored refs pending

Understanding Deep Learning Performance through an Examination of Test Set Difficulty: A Psychometric Case Study

Hao Wu, Hong Yu, John P. Lalor, Tsendsuren Munkhdalai

arxiv:1702.04811 v3 · 2017-02-15 · 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{EIBI3PUWBOZCMX2IHCRKJ33WGH}

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	2026-05-18T00:06:16.426909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22028dbe960bb2265f4838a2a4ef7631c2840cef9cc028377786db8e254f8895

Aliases

arxiv: 1702.04811 · arxiv_version: 1702.04811v3 · doi: 10.48550/arxiv.1702.04811 · pith_short_12: EIBI3PUWBOZC · pith_short_16: EIBI3PUWBOZCMX2I · pith_short_8: EIBI3PUW

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/EIBI3PUWBOZCMX2IHCRKJ33WGH \
  | 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: 22028dbe960bb2265f4838a2a4ef7631c2840cef9cc028377786db8e254f8895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99db2aad37e5e8e239a5832d089e269029cd07d506ae9b3ca309e789e95fc0a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-02-15T23:04:09Z",
    "title_canon_sha256": "767e4182271504a7574ca941e84ac41b67364b430b9f62ef7605b2826d66f880"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04811",
    "kind": "arxiv",
    "version": 3
  }
}