Pith Number

pith:KQALSGQO

pith:2015:KQALSGQOHWN5V7UYMYWZCVLTTQ

not attested not anchored not stored refs pending

Low Rank Approximation of Tensors via Sparse Optimization

Carmeliza Navasca, Xiaofei Wang

arxiv:1504.05273 v3 · 2015-04-21 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KQALSGQOHWN5V7UYMYWZCVLTTQ}

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	2026-05-18T01:01:52.360173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5400b91a0e3d9bdafe98662d9155739c2dcbdd169391800a6701052b2494d142

Aliases

arxiv: 1504.05273 · arxiv_version: 1504.05273v3 · doi: 10.48550/arxiv.1504.05273 · pith_short_12: KQALSGQOHWN5 · pith_short_16: KQALSGQOHWN5V7UY · pith_short_8: KQALSGQO

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/KQALSGQOHWN5V7UYMYWZCVLTTQ \
  | 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: 5400b91a0e3d9bdafe98662d9155739c2dcbdd169391800a6701052b2494d142

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24cfd296860ebdd1ede33aec04a29854637148e1b4c7616c31d1fd52042bb06e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-21T01:26:48Z",
    "title_canon_sha256": "cd971fef67f45849aac657da67a035700e3b1ec4879fb879feea7a0087458c88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05273",
    "kind": "arxiv",
    "version": 3
  }
}