Pith Number

pith:TQB633WH

pith:2015:TQB633WHWYCAXTMPOCC26BBKMD

not attested not anchored not stored refs pending

Intersecting Faces: Non-negative Matrix Factorization With New Guarantees

James Zou, Rong Ge

arxiv:1507.02189 v1 · 2015-07-08 · 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{TQB633WHWYCAXTMPOCC26BBKMD}

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	2026-05-18T01:37:08.438606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c03edeec7b6040bcd8f7085af042a60ffa86f5e7c370c64dc83b130b0f3b282

Aliases

arxiv: 1507.02189 · arxiv_version: 1507.02189v1 · doi: 10.48550/arxiv.1507.02189 · pith_short_12: TQB633WHWYCA · pith_short_16: TQB633WHWYCAXTMP · pith_short_8: TQB633WH

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/TQB633WHWYCAXTMPOCC26BBKMD \
  | 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: 9c03edeec7b6040bcd8f7085af042a60ffa86f5e7c370c64dc83b130b0f3b282

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "219aacbd26eba47ef72668280872a58d5de8f30f16b3b3f7ee4b9e4545ff6a35",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-07-08T15:07:40Z",
    "title_canon_sha256": "8984cacf08bc3779964d9cf0c192ed59b9c4963f4a53dab168f41611083f896f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02189",
    "kind": "arxiv",
    "version": 1
  }
}