Pith Number

pith:2I6JQMRU

pith:2011:2I6JQMRU4CHCC33R6LCRZ5JAX4

not attested not anchored not stored refs pending

Sparse Bayesian Methods for Low-Rank Matrix Estimation

Aggelos K. Katsaggelos, Martin Luessi, Rafael Molina, S. Derin Babacan

arxiv:1102.5288 v2 · 2011-02-25 · stat.ML · cs.LG · cs.SY · math.OC · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2I6JQMRU4CHCC33R6LCRZ5JAX4}

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	2026-05-18T04:13:46.979183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d23c983234e08e216f71f2c51cf520bf0d4264e3b19051673df7f366d029eb8c

Aliases

arxiv: 1102.5288 · arxiv_version: 1102.5288v2 · doi: 10.48550/arxiv.1102.5288 · pith_short_12: 2I6JQMRU4CHC · pith_short_16: 2I6JQMRU4CHCC33R · pith_short_8: 2I6JQMRU

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/2I6JQMRU4CHCC33R6LCRZ5JAX4 \
  | 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: d23c983234e08e216f71f2c51cf520bf0d4264e3b19051673df7f366d029eb8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c772d4f86eeeeed60f4e6e8acad14853a52ccb2f6a0e859ced8f6af0d944eb61",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SY",
      "math.OC",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2011-02-25T17:13:00Z",
    "title_canon_sha256": "d852f18ffa0a2aba8f7add4c65ba1a1b1caa0fe580c06b4e5ef7bb2fde730c20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5288",
    "kind": "arxiv",
    "version": 2
  }
}