Pith Number

pith:46SOXJMQ

pith:2022:46SOXJMQ4H7PDNNGMWNSFMIFXC

not attested not anchored not stored refs pending

Bounded Simplex-Structured Matrix Factorization: Algorithms, Identifiability and Applications

Fabian Lecron, Nicolas Gillis, Olivier Vu Thanh

arxiv:2209.12638 v2 · 2022-09-26 · cs.LG · cs.IR · cs.NA · eess.SP · math.NA · 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{46SOXJMQ4H7PDNNGMWNSFMIFXC}

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	2026-07-05T06:34:19.592689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7a4eba590e1fef1b5a6659b22b105b8943fd5c12bc1055b5f044208b69e7b72

Aliases

arxiv: 2209.12638 · arxiv_version: 2209.12638v2 · doi: 10.48550/arxiv.2209.12638 · pith_short_12: 46SOXJMQ4H7P · pith_short_16: 46SOXJMQ4H7PDNNG · pith_short_8: 46SOXJMQ

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/46SOXJMQ4H7PDNNGMWNSFMIFXC \
  | 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: e7a4eba590e1fef1b5a6659b22b105b8943fd5c12bc1055b5f044208b69e7b72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dde91f5b2d07093be2a94a8211a6a38f636db9637e798ef6b1e84458d6209dda",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.NA",
      "eess.SP",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-09-26T12:37:37Z",
    "title_canon_sha256": "91f6daf0da5b189019d7496c30fe24b900eb22c8119035e61dcfaa83ffb2d21f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.12638",
    "kind": "arxiv",
    "version": 2
  }
}