Pith Number

pith:T3YAX7XX

pith:2011:T3YAX7XXBZQ6GQSEJCODDU3QFM

not attested not anchored not stored refs pending

A convex model for non-negative matrix factorization and dimensionality reduction on physical space

Ernie Esser, Guillermo Sapiro, Jack Xin, Michael M\"oller, Stanley Osher

arxiv:1102.0844 v1 · 2011-02-04 · 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{T3YAX7XXBZQ6GQSEJCODDU3QFM}

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	2026-05-18T02:03:16.820885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ef00bfef70e61e34244489c31d3702b0621fcce706185aaa423fdfc147c6d92

Aliases

arxiv: 1102.0844 · arxiv_version: 1102.0844v1 · doi: 10.48550/arxiv.1102.0844 · pith_short_12: T3YAX7XXBZQ6 · pith_short_16: T3YAX7XXBZQ6GQSE · pith_short_8: T3YAX7XX

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/T3YAX7XXBZQ6GQSEJCODDU3QFM \
  | 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: 9ef00bfef70e61e34244489c31d3702b0621fcce706185aaa423fdfc147c6d92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07349dfc31d61a9f21db465803a18ac922ac3b61025e2d39b3d59be866127685",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-02-04T07:16:10Z",
    "title_canon_sha256": "43ee064a118f09e7c3ac4d39413210385f57e231c5b0d00f673e404dbb77d65b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.0844",
    "kind": "arxiv",
    "version": 1
  }
}