Pith Number

pith:Z3RKUJNJ

pith:2025:Z3RKUJNJLN7OTPJYGH6AEM65PA

not attested not anchored not stored refs pending

Nonnegative matrix factorization and the principle of the common cause

A. E. Allahverdyan, A. Hovhannisyan, E. Khalafyan

arxiv:2509.03652 v1 · 2025-09-03 · cs.LG · cs.AI · physics.data-an · 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{Z3RKUJNJLN7OTPJYGH6AEM65PA}

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	2026-07-05T12:06:20.168889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cee2aa25a95b7ee9bd3831fc0233dd78266a8bcd807d744c589fafe127e14eb1

Aliases

arxiv: 2509.03652 · arxiv_version: 2509.03652v1 · doi: 10.48550/arxiv.2509.03652 · pith_short_12: Z3RKUJNJLN7O · pith_short_16: Z3RKUJNJLN7OTPJY · pith_short_8: Z3RKUJNJ

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/Z3RKUJNJLN7OTPJYGH6AEM65PA \
  | 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: cee2aa25a95b7ee9bd3831fc0233dd78266a8bcd807d744c589fafe127e14eb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f22922e372d6aec1d828d749ccb32fb8aac48241881fdcfedc22d6981c85d85",
    "cross_cats_sorted": [
      "cs.AI",
      "physics.data-an",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-09-03T19:02:39Z",
    "title_canon_sha256": "57eebdd695cb47f594328d33e32514598b587b54df2e61c61bcb32aa2dbf2a26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.03652",
    "kind": "arxiv",
    "version": 1
  }
}