Pith Number

pith:HRR2Z2YM

pith:2025:HRR2Z2YMBJEOVWOX4STMMGMXNR

not attested not anchored not stored refs pending

Quaternion Nuclear Norms Over Frobenius Norms Minimization for Robust Matrix Completion

Guoqing Chen, Michael Kwok-Po Ng, Qiyu Jin, Tieyong Zeng, Yu Guo

arxiv:2504.21468 v1 · 2025-04-30 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HRR2Z2YMBJEOVWOX4STMMGMXNR}

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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.

Cited by

1 paper in Pith

Low-Rank Tensor Completion Based on Fractional Regularization with Ky Fan p-k Norm

Receipt and verification

First computed	2026-07-05T10:56:24.299605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c63aceb0c0a48ead9d7e4a6c619976c51dc7fc62918313593ef13b5ba8dc339

Aliases

arxiv: 2504.21468 · arxiv_version: 2504.21468v1 · doi: 10.48550/arxiv.2504.21468 · pith_short_12: HRR2Z2YMBJEO · pith_short_16: HRR2Z2YMBJEOVWOX · pith_short_8: HRR2Z2YM

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/HRR2Z2YMBJEOVWOX4STMMGMXNR \
  | 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: 3c63aceb0c0a48ead9d7e4a6c619976c51dc7fc62918313593ef13b5ba8dc339

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fcf3a81e4a1ca8b92890507e96c750bff4751600800f363719a473a8abde50d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-04-30T09:44:09Z",
    "title_canon_sha256": "a8e794782a2ad6ba5a021b0ed3b383bfcf095f8cd138453791430c4e320244eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.21468",
    "kind": "arxiv",
    "version": 1
  }
}