Pith Number

pith:2R5KGNMW

pith:2011:2R5KGNMWBLWGSSQMKCRUFW375D

not attested not anchored not stored refs pending

Matrix completion with column manipulation: Near-optimal sample-robustness-rank tradeoffs

Constantine Caramanis, Huan Xu, Sujay Sanghavi, Yudong Chen

arxiv:1102.2254 v2 · 2011-02-10 · stat.ML · cs.IT · 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{2R5KGNMWBLWGSSQMKCRUFW375D}

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	2026-05-18T01:16:28.026355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d47aa335960aec694a0c50a342db7fe8c0c4c502d53be62931cb267f7f0a3cd2

Aliases

arxiv: 1102.2254 · arxiv_version: 1102.2254v2 · doi: 10.48550/arxiv.1102.2254 · pith_short_12: 2R5KGNMWBLWG · pith_short_16: 2R5KGNMWBLWGSSQM · pith_short_8: 2R5KGNMW

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/2R5KGNMWBLWGSSQMKCRUFW375D \
  | 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: d47aa335960aec694a0c50a342db7fe8c0c4c502d53be62931cb267f7f0a3cd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8722a8365547d9bf27d126e5590d58a57ad0a6a6257250c382658cbbc4c2d44",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-02-10T22:57:47Z",
    "title_canon_sha256": "d2035d18aed47c1424d7bc7cd90fedc2661e04fc28c12d4eb4808993c3b186f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2254",
    "kind": "arxiv",
    "version": 2
  }
}