Pith Number

pith:WHLVJS2R

pith:2023:WHLVJS2RLIIXDIPGQQY5AYTZSH

not attested not anchored not stored refs pending

Topological Learning in Multi-Class Data Sets

Benjamin Apple, Christopher Griffin, Trevor Karn

arxiv:2301.09734 v4 · 2023-01-23 · cs.LG · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WHLVJS2RLIIXDIPGQQY5AYTZSH}

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	2026-07-05T08:28:32.021617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1d754cb515a1171a1e68431d0627991ccec02ff352c7285f0c8eb681eae4396

Aliases

arxiv: 2301.09734 · arxiv_version: 2301.09734v4 · doi: 10.48550/arxiv.2301.09734 · pith_short_12: WHLVJS2RLIIX · pith_short_16: WHLVJS2RLIIXDIPG · pith_short_8: WHLVJS2R

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/WHLVJS2RLIIXDIPGQQY5AYTZSH \
  | 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: b1d754cb515a1171a1e68431d0627991ccec02ff352c7285f0c8eb681eae4396

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fc2ac069417552d77b217e27ce6ef96c09798753aaae096aab529eca9ee143e",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2023-01-23T21:54:25Z",
    "title_canon_sha256": "292eaabb89614b264954d1f48f157c925682c63e7b6d9b74a8c1baa195db6bb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.09734",
    "kind": "arxiv",
    "version": 4
  }
}