Pith Number

pith:LH36FQDN

pith:2011:LH36FQDNXYGJF3CWGKAI43NM3C

not attested not anchored not stored refs pending

Computing a Nonnegative Matrix Factorization -- Provably

Ankur Moitra, Ravi Kannan, Rong Ge, Sanjeev Arora

arxiv:1111.0952 v1 · 2011-11-03 · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LH36FQDNXYGJF3CWGKAI43NM3C}

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.

Cited by

1 paper in Pith

Complexity of Contextuality

Receipt and verification

First computed	2026-05-18T04:09:36.563170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59f7e2c06dbe0c92ec5632808e6dacd883c7c5ba1dc13dfd4e56f6333128ee8d

Aliases

arxiv: 1111.0952 · arxiv_version: 1111.0952v1 · doi: 10.48550/arxiv.1111.0952 · pith_short_12: LH36FQDNXYGJ · pith_short_16: LH36FQDNXYGJF3CW · pith_short_8: LH36FQDN

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/LH36FQDNXYGJF3CWGKAI43NM3C \
  | 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: 59f7e2c06dbe0c92ec5632808e6dacd883c7c5ba1dc13dfd4e56f6333128ee8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0c9270bc3e5b229b482ee6cb428a32ee30fe99ece9cb5cfb49b980e2545c7e3",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-11-03T19:15:56Z",
    "title_canon_sha256": "3e377f8c40790a6c6b5d64c433a1011345d8129e929b529906f475e2506c929b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0952",
    "kind": "arxiv",
    "version": 1
  }
}