Pith Number

pith:ITB5AGGD

pith:2024:ITB5AGGDJ4R7ERII7PBAQB7RP5

not attested not anchored not stored refs pending

Graph Regularized Sparse $L_{2,1}$ Semi-Nonnegative Matrix Factorization for Data Reduction

Anthony Rhodes, Bin Jiang, Jenny Jiang

arxiv:2410.16453 v1 · 2024-10-21 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ITB5AGGDJ4R7ERII7PBAQB7RP5}

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	2026-07-05T09:23:36.514811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44c3d018c34f23f24508fbc20807f17f4f5dc47ef8235a092f6643f6206620fa

Aliases

arxiv: 2410.16453 · arxiv_version: 2410.16453v1 · doi: 10.48550/arxiv.2410.16453 · pith_short_12: ITB5AGGDJ4R7 · pith_short_16: ITB5AGGDJ4R7ERII · pith_short_8: ITB5AGGD

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/ITB5AGGDJ4R7ERII7PBAQB7RP5 \
  | 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: 44c3d018c34f23f24508fbc20807f17f4f5dc47ef8235a092f6643f6206620fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea697b8b2aa453f4930e67d8fbda895abb98f3c68f6914f0b116b3bfd8aadfa0",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-10-21T19:27:11Z",
    "title_canon_sha256": "b27f12d448978eb0d4932d1c5a54256d0fc88638f930ba8b2b1ef955b8ab6c76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2410.16453",
    "kind": "arxiv",
    "version": 1
  }
}