Pith Number

pith:Y2LR2QAT

pith:2015:Y2LR2QATGNYND2JZLCZOML3JR7

not attested not anchored not stored refs pending

Low rank approximation and decomposition of large matrices using error correcting codes

Arya Mazumdar, Shashanka Ubaru, Yousef Saad

arxiv:1512.09156 v3 · 2015-12-30 · cs.IT · cs.LG · cs.NA · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y2LR2QATGNYND2JZLCZOML3JR7}

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	2026-05-18T00:06:12.708912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6971d40133370d1e93958b2e62f698feb3ca6a13f22cfdfffae52299faac185

Aliases

arxiv: 1512.09156 · arxiv_version: 1512.09156v3 · doi: 10.48550/arxiv.1512.09156 · pith_short_12: Y2LR2QATGNYN · pith_short_16: Y2LR2QATGNYND2JZ · pith_short_8: Y2LR2QAT

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/Y2LR2QATGNYND2JZLCZOML3JR7 \
  | 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: c6971d40133370d1e93958b2e62f698feb3ca6a13f22cfdfffae52299faac185

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "982ef816c3ccd192066c68ec77168b147290c845e6ccf91406ae998883ff04ef",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-12-30T21:29:57Z",
    "title_canon_sha256": "701d95094c0195374d7607952896e9b775f2d8bb9b9fea4daad590a36147fd0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09156",
    "kind": "arxiv",
    "version": 3
  }
}