Pith Number

pith:DJZHH65N

pith:2013:DJZHH65NHDOQ6KXGNMDGPKM7ZD

not attested not anchored not stored refs pending

Non-negative Matrix Factorization with Linear Constraints for Single-Channel Speech Enhancement

Mikhail Kotov, Nikolay Lyubimov

arxiv:1309.6047 v1 · 2013-09-24 · cs.SD · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DJZHH65NHDOQ6KXGNMDGPKM7ZD}

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	2026-05-18T03:12:24.246863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a7273fbad38dd0f2ae66b0667a99fc8e770b6effdb8f2912481a62a9387db31

Aliases

arxiv: 1309.6047 · arxiv_version: 1309.6047v1 · doi: 10.48550/arxiv.1309.6047 · pith_short_12: DJZHH65NHDOQ · pith_short_16: DJZHH65NHDOQ6KXG · pith_short_8: DJZHH65N

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/DJZHH65NHDOQ6KXGNMDGPKM7ZD \
  | 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: 1a7273fbad38dd0f2ae66b0667a99fc8e770b6effdb8f2912481a62a9387db31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34d82af0080377d720772f8c06f8b368f252a4f0a35e729c5be7fa206cb7f3d4",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2013-09-24T05:14:53Z",
    "title_canon_sha256": "ec2d91670b85549dc0e64127afbc10a6c5df2a390ba3b21e2bac0b516e341084"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6047",
    "kind": "arxiv",
    "version": 1
  }
}