Pith Number

pith:WB3C3SB7

pith:2019:WB3C3SB7UCIG6ESP2WUJTXQ7UM

not attested not anchored not stored refs pending

A Dictionary Based Generalization of Robust PCA

Jarvis Haupt, Sirisha Rambhatla, Xingguo Li

arxiv:1902.08171 v1 · 2019-02-21 · cs.LG · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WB3C3SB7UCIG6ESP2WUJTXQ7UM}

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	2026-05-17T23:53:01.907597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0762dc83fa0906f124fd5a899de1fa3288c2c11b024290647f22cf56ef1c126

Aliases

arxiv: 1902.08171 · arxiv_version: 1902.08171v1 · doi: 10.48550/arxiv.1902.08171 · pith_short_12: WB3C3SB7UCIG · pith_short_16: WB3C3SB7UCIG6ESP · pith_short_8: WB3C3SB7

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/WB3C3SB7UCIG6ESP2WUJTXQ7UM \
  | 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: b0762dc83fa0906f124fd5a899de1fa3288c2c11b024290647f22cf56ef1c126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d334e9c51364e889f6c6d2c70307d716b4c8f4369450d5578d580c7c935f22d5",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-02-21T18:16:18Z",
    "title_canon_sha256": "9387e73687db4ad6aa7c513b190c5c4c35ad6a08ea0d1e709cb6c9438f66f708"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08171",
    "kind": "arxiv",
    "version": 1
  }
}