Pith Number

pith:G25WUY2H

pith:2006:G25WUY2H3QMA4MEGNT5V4BNTMH

not attested not anchored not stored refs pending

SOM-based algorithms for qualitative variables

Marie Cottrell, Patrick Letr\'emy, Smail Ibbou

arxiv:math/0610584 v1 · 2006-10-19 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G25WUY2H3QMA4MEGNT5V4BNTMH}

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	2026-05-18T01:08:49.599092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36bb6a6347dc180e30866cfb5e05b361f3df16413bc49ee341d0cfd3957cc5cf

Aliases

arxiv: math/0610584 · arxiv_version: math/0610584v1 · doi: 10.48550/arxiv.math/0610584 · pith_short_12: G25WUY2H3QMA · pith_short_16: G25WUY2H3QMA4MEG · pith_short_8: G25WUY2H

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/G25WUY2H3QMA4MEGNT5V4BNTMH \
  | 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: 36bb6a6347dc180e30866cfb5e05b361f3df16413bc49ee341d0cfd3957cc5cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9910fedad5681d59db3c09f32cfc05196046639229d29dd999ae7826726101b",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "",
    "primary_cat": "math.ST",
    "submitted_at": "2006-10-19T12:24:44Z",
    "title_canon_sha256": "10eb2e255a1b1357fe1e7ce1840754254fdf8ed7c9746328db25341a058ff87c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0610584",
    "kind": "arxiv",
    "version": 1
  }
}