Pith Number

pith:K44XEAC7

pith:2021:K44XEAC7HBUZWVH3VTBUQ2AO3A

not attested not anchored not stored refs pending

A Topological Data Analysis Based Classifier

Jos\'e Fr\'ias, Mauricio Cerda, Nancy Hitschfeld, Rolando Kindelan

arxiv:2111.05214 v3 · 2021-11-09 · cs.LG · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K44XEAC7HBUZWVH3VTBUQ2AO3A}

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	2026-07-05T03:54:03.573367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

573972005f38699b54fbacc348680ed831acc281f6bb3bcac0a994bbd001425a

Aliases

arxiv: 2111.05214 · arxiv_version: 2111.05214v3 · doi: 10.48550/arxiv.2111.05214 · pith_short_12: K44XEAC7HBUZ · pith_short_16: K44XEAC7HBUZWVH3 · pith_short_8: K44XEAC7

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/K44XEAC7HBUZWVH3VTBUQ2AO3A \
  | 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: 573972005f38699b54fbacc348680ed831acc281f6bb3bcac0a994bbd001425a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63474ecb74d8649b553e68751783905fcab8e0858ac68132a3562cce306715b3",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-11-09T15:54:16Z",
    "title_canon_sha256": "4eb4f92c16d91cf74aeffe9dbb83f418e9b0bbd44de12263e8dc3a2dacbe7999"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.05214",
    "kind": "arxiv",
    "version": 3
  }
}