Pith Number

pith:45ZPSF6D

pith:2026:45ZPSF6D5RGJJEKGFC7SDP5HOP

not attested not anchored not stored refs pending

A new classification method based on Minimum Spanning Trees

Beatriz Pateiro-L\'opez, Iria Rodr\'iguez-Acevedo, Julio Gonz\'alez-D\'iaz

arxiv:2606.21639 v1 · 2026-06-19 · cs.LG · stat.ME · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{45ZPSF6D5RGJJEKGFC7SDP5HOP}

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	2026-06-23T01:13:17.547712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e772f917c3ec4c94914628bf21bfa773c2af45ab52898af7089353c501f9ce89

Aliases

arxiv: 2606.21639 · arxiv_version: 2606.21639v1 · doi: 10.48550/arxiv.2606.21639 · pith_short_12: 45ZPSF6D5RGJ · pith_short_16: 45ZPSF6D5RGJJEKG · pith_short_8: 45ZPSF6D

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/45ZPSF6D5RGJJEKGFC7SDP5HOP \
  | 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: e772f917c3ec4c94914628bf21bfa773c2af45ab52898af7089353c501f9ce89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28a0142a591ac6ee0559c943edbaa7f7b7c47ea3ac975fbde85e30145a133c96",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-19T17:48:15Z",
    "title_canon_sha256": "fdeb2984a600c9e651a0b3d930cab9fc0056c4d3f072b2632937a55746b700bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21639",
    "kind": "arxiv",
    "version": 1
  }
}