Pith Number

pith:ST5KDYTQ

pith:2012:ST5KDYTQBX4ELT6HBQTB3DO2PM

not attested not anchored not stored refs pending

Matrix estimation by Universal Singular Value Thresholding

Sourav Chatterjee

arxiv:1212.1247 v7 · 2012-12-06 · math.ST · math.PR · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ST5KDYTQBX4ELT6HBQTB3DO2PM}

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	2026-05-18T02:30:22.995001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94faa1e2700df845cfc70c261d8dda7b0fc52dd75fd992f67198891460cef843

Aliases

arxiv: 1212.1247 · arxiv_version: 1212.1247v7 · doi: 10.48550/arxiv.1212.1247 · pith_short_12: ST5KDYTQBX4E · pith_short_16: ST5KDYTQBX4ELT6H · pith_short_8: ST5KDYTQ

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/ST5KDYTQBX4ELT6HBQTB3DO2PM \
  | 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: 94faa1e2700df845cfc70c261d8dda7b0fc52dd75fd992f67198891460cef843

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c20c339987f449704a3bd74ecbbef9710d405a6b5a9663ddbc947b4ed83cff2f",
    "cross_cats_sorted": [
      "math.PR",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-12-06T06:56:02Z",
    "title_canon_sha256": "79c830ba51e50462345d1c3b03dce9bd1ceb72fb170e7a29396fdb9bd4e7e9dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1247",
    "kind": "arxiv",
    "version": 7
  }
}