Pith Number

pith:C24O2QCP

pith:2023:C24O2QCPPWEECSMAOFYJGYPPEK

not attested not anchored not stored refs pending

CPQR-based randomized algorithms for generalized CUR decompositions

Guihua Zhang, Hanyu Li, Yimin Wei

arxiv:2303.06958 v1 · 2023-03-13 · 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{C24O2QCPPWEECSMAOFYJGYPPEK}

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	2026-07-05T05:50:24.819769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16b8ed404f7d8841498071709361ef229be193fc1f290497f3c07cf86a55cc93

Aliases

arxiv: 2303.06958 · arxiv_version: 2303.06958v1 · doi: 10.48550/arxiv.2303.06958 · pith_short_12: C24O2QCPPWEE · pith_short_16: C24O2QCPPWEECSMA · pith_short_8: C24O2QCP

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/C24O2QCPPWEECSMAOFYJGYPPEK \
  | 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: 16b8ed404f7d8841498071709361ef229be193fc1f290497f3c07cf86a55cc93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c3a0b3c61c3ba21e6d9cf2be25cd75165b9358fa42206c83afe2d21a1d91349",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-03-13T09:56:52Z",
    "title_canon_sha256": "29b6497b7431da53072d34ecccadb3dd08234c2fcc36713a6d0931c1c6feedec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.06958",
    "kind": "arxiv",
    "version": 1
  }
}