Pith Number

pith:FNNOKOE4

pith:2021:FNNOKOE4AY6ZCBS35A6NPWUR5E

not attested not anchored not stored refs pending

Weighted Truncated Nuclear Norm Regularization for Low-Rank Quaternion Matrix Completion

Jifei Miao, Kit Ian Kou, Liqiao Yang

arxiv:2101.02443 v1 · 2021-01-07 · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FNNOKOE4AY6ZCBS35A6NPWUR5E}

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	2026-07-05T02:05:13.782912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b5ae5389c063d91065be83cd7da91e924311b4f3875cb6a6610969ea57a08b7

Aliases

arxiv: 2101.02443 · arxiv_version: 2101.02443v1 · doi: 10.48550/arxiv.2101.02443 · pith_short_12: FNNOKOE4AY6Z · pith_short_16: FNNOKOE4AY6ZCBS3 · pith_short_8: FNNOKOE4

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/FNNOKOE4AY6ZCBS35A6NPWUR5E \
  | 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: 2b5ae5389c063d91065be83cd7da91e924311b4f3875cb6a6610969ea57a08b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "472ddf514489c888e5cb18af84a4c25467c5576cc362cd8ed28e4d15354ba183",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2021-01-07T09:22:29Z",
    "title_canon_sha256": "6ee5be3e9f9b668b1c1f0cc0e0554aba63f2e0ee53ad0e6f816fdfb3848e6cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.02443",
    "kind": "arxiv",
    "version": 1
  }
}