Pith Number

pith:XZFTA6LA

pith:2020:XZFTA6LA73POL3SAWRYD3GVT5V

not attested not anchored not stored refs pending

Randomized Quaternion Singular Value Decomposition for Low-Rank Approximation

Qiaohua Liu, Sitao Ling, Zhigang Jia

arxiv:2011.03368 v2 · 2020-11-06 · math.NA · cs.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{XZFTA6LA73POL3SAWRYD3GVT5V}

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	2026-07-05T03:43:38.307924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be4b307960fedee5ee40b4703d9ab3ed4b7007e4706b30d8f044f7594d23fa78

Aliases

arxiv: 2011.03368 · arxiv_version: 2011.03368v2 · doi: 10.48550/arxiv.2011.03368 · pith_short_12: XZFTA6LA73PO · pith_short_16: XZFTA6LA73POL3SA · pith_short_8: XZFTA6LA

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/XZFTA6LA73POL3SAWRYD3GVT5V \
  | 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: be4b307960fedee5ee40b4703d9ab3ed4b7007e4706b30d8f044f7594d23fa78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c071363ecea28993d883afc35fbd05dcfd826b9cb88c14fa3d633803bcdaf4b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-11-06T14:11:25Z",
    "title_canon_sha256": "6ef92d8d1d37d6082ba09d48cc87478e857f61ddc343cbfb724f3add0de44150"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.03368",
    "kind": "arxiv",
    "version": 2
  }
}