Pith Number

pith:VLWDYBYU

pith:2017:VLWDYBYUX5CYFKIWG5KHZXOODS

not attested not anchored not stored refs pending

A State-Space Approach to Dynamic Nonnegative Matrix Factorization

Ghazaleh Panahandeh, Nasser Mohammadiha, Paris Smaragdis, Simon Doclo

arxiv:1709.00025 v1 · 2017-08-31 · cs.LG · 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{VLWDYBYUX5CYFKIWG5KHZXOODS}

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	2026-05-18T00:36:13.646805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaec3c0714bf4582a91637547cddce1cb316545850afc3cc1a475bb53fc06164

Aliases

arxiv: 1709.00025 · arxiv_version: 1709.00025v1 · doi: 10.48550/arxiv.1709.00025 · pith_short_12: VLWDYBYUX5CY · pith_short_16: VLWDYBYUX5CYFKIW · pith_short_8: VLWDYBYU

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/VLWDYBYUX5CYFKIWG5KHZXOODS \
  | 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: aaec3c0714bf4582a91637547cddce1cb316545850afc3cc1a475bb53fc06164

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06b56ff4dec0bf25cdabe20613e3e8e413ded1bd619f237a0e1aba292d39f342",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2017-08-31T18:12:52Z",
    "title_canon_sha256": "ae7d08f2ce942b997e3f2fae63be9efd91a99bc827b17db79578ee4eb506fa14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00025",
    "kind": "arxiv",
    "version": 1
  }
}