Pith Number

pith:IMCQNPGG

pith:2019:IMCQNPGGADCUEMOER6HHIE23YU

not attested not anchored not stored refs pending

RES-PCA: A Scalable Approach to Recovering Low-rank Matrices

Chenglizhao Chen, Chong Peng, Jianbo Li, Qiang Cheng, Zhao Kang

arxiv:1904.07497 v1 · 2019-04-16 · cs.LG · cs.CV · 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{IMCQNPGGADCUEMOER6HHIE23YU}

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	2026-05-17T23:48:25.056359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

430506bcc600c54231c48f8e74135bc5264bb8122399ca804e0323c580497ea2

Aliases

arxiv: 1904.07497 · arxiv_version: 1904.07497v1 · doi: 10.48550/arxiv.1904.07497 · pith_short_12: IMCQNPGGADCU · pith_short_16: IMCQNPGGADCUEMOE · pith_short_8: IMCQNPGG

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/IMCQNPGGADCUEMOER6HHIE23YU \
  | 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: 430506bcc600c54231c48f8e74135bc5264bb8122399ca804e0323c580497ea2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "890b923daca3aa1a54917956c27f21164008ad6079de7d2e11ef212a28f5ef36",
    "cross_cats_sorted": [
      "cs.CV",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-16T07:07:44Z",
    "title_canon_sha256": "64536f29080f3c1fb86353dce052436a62f47d8622299c4fcce72fc441cc804a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07497",
    "kind": "arxiv",
    "version": 1
  }
}