Pith Number

pith:LU6SEI7K

pith:2024:LU6SEI7K7NJYWNIOZH2WURWECA

not attested not anchored not stored refs pending

A Lightweight Measure of Classification Difficulty from Application Dataset Characteristics

Abhinav Sharma, Bryan Bo Cao, Lawrence O'Gorman, Michael Coss, Shubham Jain

arxiv:2404.05981 v2 · 2024-04-09 · cs.LG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LU6SEI7K7NJYWNIOZH2WURWECA}

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	2026-07-05T09:28:11.580378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d3d2223eafb538b350ec9f56a46c41024d06de1dd7b6a958498bae2e6c92ee2

Aliases

arxiv: 2404.05981 · arxiv_version: 2404.05981v2 · doi: 10.48550/arxiv.2404.05981 · pith_short_12: LU6SEI7K7NJY · pith_short_16: LU6SEI7K7NJYWNIO · pith_short_8: LU6SEI7K

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/LU6SEI7K7NJYWNIOZH2WURWECA \
  | 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: 5d3d2223eafb538b350ec9f56a46c41024d06de1dd7b6a958498bae2e6c92ee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f451ec16851f83cdda07b9ec4f2d08c7855499bd63377d35e91e31e992e179fa",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2024-04-09T03:27:09Z",
    "title_canon_sha256": "62a79b73997e4aa474b88ab640d701b2ed7ef8f9f8d40d65e64dbc67a7956df7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.05981",
    "kind": "arxiv",
    "version": 2
  }
}