Pith Number

pith:2OBQ7HFW

pith:2019:2OBQ7HFWQIV4TQXMNTXTNI2SVS

not attested not anchored not stored refs pending

Truncated nuclear norm regularization for low-rank tensor completion

Fan Liu, Shengke Xue, Wenyuan Qiu, Xinyu Jin

arxiv:1901.01997 v1 · 2019-01-07 · 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{2OBQ7HFWQIV4TQXMNTXTNI2SVS}

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	2026-05-17T23:56:44.203738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3830f9cb6822bc9c2ec6cef36a352acb4964caa628fdf096b8bf515f6320432

Aliases

arxiv: 1901.01997 · arxiv_version: 1901.01997v1 · doi: 10.48550/arxiv.1901.01997 · pith_short_12: 2OBQ7HFWQIV4 · pith_short_16: 2OBQ7HFWQIV4TQXM · pith_short_8: 2OBQ7HFW

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/2OBQ7HFWQIV4TQXMNTXTNI2SVS \
  | 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: d3830f9cb6822bc9c2ec6cef36a352acb4964caa628fdf096b8bf515f6320432

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddc58e4466144981c7002a03f809e1d4e5ad48d40c783b6968929d90da17685c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-07T08:21:47Z",
    "title_canon_sha256": "cbd467c044df4e36f7e9caeeb63d98861ec892d0eec2472ea2f76fc481972cab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01997",
    "kind": "arxiv",
    "version": 1
  }
}