Pith Number

pith:HK3RE2DI

pith:2010:HK3RE2DIZAJ233QFXC2VLUBJW7

not attested not anchored not stored refs pending

Two Proposals for Robust PCA using Semidefinite Programming

Joel Tropp, Michael McCoy

arxiv:1012.1086 v3 · 2010-12-06 · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HK3RE2DIZAJ233QFXC2VLUBJW7}

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	2026-05-18T03:02:47.301358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ab7126868c813adee05b8b555d029b7e6ec53d04abfb0b9af625c696ff85f44

Aliases

arxiv: 1012.1086 · arxiv_version: 1012.1086v3 · doi: 10.48550/arxiv.1012.1086 · pith_short_12: HK3RE2DIZAJ2 · pith_short_16: HK3RE2DIZAJ233QF · pith_short_8: HK3RE2DI

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/HK3RE2DIZAJ233QFXC2VLUBJW7 \
  | 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: 3ab7126868c813adee05b8b555d029b7e6ec53d04abfb0b9af625c696ff85f44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3690aaf4330999d62da618961f8ad24f6e4a5b3515479e014c4cde34fd66503f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2010-12-06T06:56:55Z",
    "title_canon_sha256": "01eed35fd57cf56e9d9d61da7e5ef0153f9a643663ce5b126069ba6ade2c748e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1086",
    "kind": "arxiv",
    "version": 3
  }
}