Pith Number

pith:X2TZOQC3

pith:2012:X2TZOQC3OTCCVU2M7PAZ5JJT7G

not attested not anchored not stored refs pending

The Algebraic Combinatorial Approach for Low-Rank Matrix Completion

Franz J. Kir\'aly, Louis Theran, Ryota Tomioka

arxiv:1211.4116 v4 · 2012-11-17 · cs.LG · cs.NA · math.AG · math.CO · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X2TZOQC3OTCCVU2M7PAZ5JJT7G}

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	2026-05-18T02:44:57.031432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bea797405b74c42ad34cfbc19ea533f9926f6a35b4ccf9e6df51495691b16268

Aliases

arxiv: 1211.4116 · arxiv_version: 1211.4116v4 · doi: 10.48550/arxiv.1211.4116 · pith_short_12: X2TZOQC3OTCC · pith_short_16: X2TZOQC3OTCCVU2M · pith_short_8: X2TZOQC3

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/X2TZOQC3OTCCVU2M7PAZ5JJT7G \
  | 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: bea797405b74c42ad34cfbc19ea533f9926f6a35b4ccf9e6df51495691b16268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44716b5c5fcd6255347ebef4d48dc0d3061b9530552819908068a5f3467964b6",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AG",
      "math.CO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-11-17T12:23:36Z",
    "title_canon_sha256": "600f95d679213bde894f5d647d834de9a11a9a5eb6e829ec501e69a140925b5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4116",
    "kind": "arxiv",
    "version": 4
  }
}