Pith Number

pith:BUBXBCMZ

pith:2021:BUBXBCMZ6NFFPKMO6Y2OYQ3HW7

not attested not anchored not stored refs pending

Generalized Low-rank plus Sparse Tensor Estimation by Fast Riemannian Optimization

Dong Xia, Jian-Feng Cai, Jingyang Li

arxiv:2103.08895 v4 · 2021-03-16 · stat.ME · math.OC · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUBXBCMZ6NFFPKMO6Y2OYQ3HW7}

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	2026-07-05T04:14:36.970920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d03708999f34a57a98ef634ec4367b7e9144d1c66bf54994549be721008b84d

Aliases

arxiv: 2103.08895 · arxiv_version: 2103.08895v4 · doi: 10.48550/arxiv.2103.08895 · pith_short_12: BUBXBCMZ6NFF · pith_short_16: BUBXBCMZ6NFFPKMO · pith_short_8: BUBXBCMZ

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/BUBXBCMZ6NFFPKMO6Y2OYQ3HW7 \
  | 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: 0d03708999f34a57a98ef634ec4367b7e9144d1c66bf54994549be721008b84d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9bd71def2aeb84ebab503bc48237f147b2b17ae95f3f7e1e68b24611a7e08f8",
    "cross_cats_sorted": [
      "math.OC",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2021-03-16T07:38:54Z",
    "title_canon_sha256": "0ddd966c9926d1f16953e62641077a88315adbb58939e4ba9b99065efbae647b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08895",
    "kind": "arxiv",
    "version": 4
  }
}