Pith Number

pith:CBC2HMQW

pith:2009:CBC2HMQW7UE66MXIKQE242DNZD

not attested not anchored not stored refs pending

Low-rank Matrix Completion with Noisy Observations: a Quantitative Comparison

Andrea Montanari, Raghunandan H. Keshavan, Sewoong Oh

arxiv:0910.0921 v2 · 2009-10-06 · cs.LG · cs.NA · 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{CBC2HMQW7UE66MXIKQE242DNZD}

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	2026-06-03T23:06:29.559676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1045a3b216fd09ef32e85409ae686dc8f7e4fbd021fe2b97362be9aa59ee6078

Aliases

arxiv: 0910.0921 · arxiv_version: 0910.0921v2 · doi: 10.48550/arxiv.0910.0921 · pith_short_12: CBC2HMQW7UE6 · pith_short_16: CBC2HMQW7UE66MXI · pith_short_8: CBC2HMQW

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/CBC2HMQW7UE66MXIKQE242DNZD \
  | 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: 1045a3b216fd09ef32e85409ae686dc8f7e4fbd021fe2b97362be9aa59ee6078

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c36a1d1ece8bf9002d9e3cb3c080fca2356ec74cf6c9ff77474184aff34026aa",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2009-10-06T04:41:05Z",
    "title_canon_sha256": "329108e39b0edb6744b597265882d47977cb43e481b1d50c25c72c1d7afe9539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0921",
    "kind": "arxiv",
    "version": 2
  }
}