Pith Number

pith:PI5EYIIQ

pith:2023:PI5EYIIQN6D7BIXWIBOIKGAIZ6

not attested not anchored not stored refs pending

Interlacing Polynomial Method for Matrix Approximation via Generalized Column and Row Selection

Jian-Feng Cai, Zhiqiang Xu, Zili Xu

arxiv:2312.01715 v2 · 2023-12-04 · math.FA · math.CO · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PI5EYIIQN6D7BIXWIBOIKGAIZ6}

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	2026-07-05T10:51:03.359140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a3a4c21106f87f0a2f6405c851808cf8fcb770715c9a0e77245bce9dac01243

Aliases

arxiv: 2312.01715 · arxiv_version: 2312.01715v2 · doi: 10.48550/arxiv.2312.01715 · pith_short_12: PI5EYIIQN6D7 · pith_short_16: PI5EYIIQN6D7BIXW · pith_short_8: PI5EYIIQ

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/PI5EYIIQN6D7BIXWIBOIKGAIZ6 \
  | 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: 7a3a4c21106f87f0a2f6405c851808cf8fcb770715c9a0e77245bce9dac01243

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f10635c0e9791675abab6b225c96081a1f3acab0335bda8217c57a17f44aa9fe",
    "cross_cats_sorted": [
      "math.CO",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2023-12-04T08:14:23Z",
    "title_canon_sha256": "8170c867c1f88000c3a564a12429de1a197c2987a4145d449caa6a4af6cbbf59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.01715",
    "kind": "arxiv",
    "version": 2
  }
}