Pith Number

pith:TTLDKEU7

pith:2017:TTLDKEU7JGIIT6NDGRS6LNPJ3A

not attested not anchored not stored refs pending

A Nonconvex Splitting Method for Symmetric Nonnegative Matrix Factorization: Convergence Analysis and Optimality

Mingyi Hong, Songtao Lu, Zhengdao Wang

arxiv:1703.08267 v1 · 2017-03-24 · math.OC · 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{TTLDKEU7JGIIT6NDGRS6LNPJ3A}

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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	2026-05-18T00:48:00.304181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cd635129f499089f9a33465e5b5e9d81d9e9ee5523df9bffe4bcf2da1c14858

Aliases

arxiv: 1703.08267 · arxiv_version: 1703.08267v1 · doi: 10.48550/arxiv.1703.08267 · pith_short_12: TTLDKEU7JGII · pith_short_16: TTLDKEU7JGIIT6ND · pith_short_8: TTLDKEU7

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/TTLDKEU7JGIIT6NDGRS6LNPJ3A \
  | 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: 9cd635129f499089f9a33465e5b5e9d81d9e9ee5523df9bffe4bcf2da1c14858

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "706c5dacb3fe33f436acf8adfbb49e116975de065cd6c09b405328502add3ba8",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-03-24T02:31:23Z",
    "title_canon_sha256": "336c87e9713476ff42bde1e52b8d9d08846edf32396156c37fd66b0d89dc6641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.08267",
    "kind": "arxiv",
    "version": 1
  }
}