Pith Number

pith:663D3YXF

pith:2013:663D3YXFTS63BVAP742PG5Q4EN

not attested not anchored not stored refs pending

Localization of Matrix Factorizations

Ilya Krishtal, Thomas Strohmer, Tim Wertz

arxiv:1305.1618 v1 · 2013-05-07 · math.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{663D3YXFTS63BVAP742PG5Q4EN}

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	2026-05-18T02:32:14.437970Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7b63de2e59cbdb0d40fff34f3761c23454da767504376bd431018deb09cf621

Aliases

arxiv: 1305.1618 · arxiv_version: 1305.1618v1 · doi: 10.48550/arxiv.1305.1618 · pith_short_12: 663D3YXFTS63 · pith_short_16: 663D3YXFTS63BVAP · pith_short_8: 663D3YXF

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/663D3YXFTS63BVAP742PG5Q4EN \
  | 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: f7b63de2e59cbdb0d40fff34f3761c23454da767504376bd431018deb09cf621

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1c407159a5447982f898fe0345989d340741ba8d0a67cd6fb46a4f21c53930c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-05-07T19:55:06Z",
    "title_canon_sha256": "272f654b80ae6c544e84dafbbafab0896e7fc1d7932c70722acd8c3513cbc484"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1618",
    "kind": "arxiv",
    "version": 1
  }
}