Pith Number

pith:2KKTU255

pith:2016:2KKTU255DEKPAFGSKV6GCJJRLT

not attested not anchored not stored refs pending

Nonnegative Matrix Factorization for identification of unknown number of sources emitting delayed signals

Boian S. Alexandrov, Filip L. Iliev, Valentin G. Stanev, Velimir V. Vesselinov

arxiv:1612.03950 v2 · 2016-12-12 · 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{2KKTU255DEKPAFGSKV6GCJJRLT}

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	2026-05-18T00:20:17.555621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2953a6bbd1914f014d2557c6125315ce92c97d111062b4fcccc976579d5f8de

Aliases

arxiv: 1612.03950 · arxiv_version: 1612.03950v2 · doi: 10.48550/arxiv.1612.03950 · pith_short_12: 2KKTU255DEKP · pith_short_16: 2KKTU255DEKPAFGS · pith_short_8: 2KKTU255

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/2KKTU255DEKPAFGSKV6GCJJRLT \
  | 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: d2953a6bbd1914f014d2557c6125315ce92c97d111062b4fcccc976579d5f8de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "446b72c0eeab992ae25c0fe3d01c7320510d078530f24ed8fcca350fd031a82c",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-12-12T22:21:41Z",
    "title_canon_sha256": "cc519209f9e26f88169f30028d6ca17c6b3eba3ddf9334f054080f5a8a862f2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.03950",
    "kind": "arxiv",
    "version": 2
  }
}