Pith Number

pith:SAMRP2RU

pith:2026:SAMRP2RUXUYUFE4WLOXJUWLNLK

not attested not anchored not stored refs pending

Multiclass Classification without Labels via Posterior Simplex Geometry

Johann Ioannou-Nikolaides, Rapha\"el Bonnet-Guerrini, Troels Petersen, Vincenzo Piuri

arxiv:2607.24943 v1 · 2026-07-27 · cs.LG · astro-ph.GA · cs.AI · 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{SAMRP2RUXUYUFE4WLOXJUWLNLK}

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	2026-07-29T00:24:53.534175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901917ea34bd314293965bae9a596d5a86a4feec62835091e06183c547430726

Aliases

arxiv: 2607.24943 · arxiv_version: 2607.24943v1 · doi: 10.48550/arxiv.2607.24943 · pith_short_12: SAMRP2RUXUYU · pith_short_16: SAMRP2RUXUYUFE4W · pith_short_8: SAMRP2RU

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/SAMRP2RUXUYUFE4WLOXJUWLNLK \
  | 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: 901917ea34bd314293965bae9a596d5a86a4feec62835091e06183c547430726

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46b928c69b4b6eb4d06668473ebf366e0284484bd2f1d28887076fa01933e11d",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-27T18:01:04Z",
    "title_canon_sha256": "74d262deb4fd0436caef3f8d23f5b6cf1f9c9eede6927cb06d9209c04d275e34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.24943",
    "kind": "arxiv",
    "version": 1
  }
}