Pith Number

pith:7AIWOL2M

pith:2019:7AIWOL2MTNSZK3WWOWANSGAXB5

not attested not anchored not stored refs pending

Binary matrix completion with nonconvex regularizers

Chunsheng Liu

arxiv:1904.03807 v1 · 2019-04-08 · cs.LG · 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{7AIWOL2MTNSZK3WWOWANSGAXB5}

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	2026-05-17T23:49:08.101900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f811672f4c9b65956ed67580d918170f512a093eb1dba4515432c85e96c3e874

Aliases

arxiv: 1904.03807 · arxiv_version: 1904.03807v1 · doi: 10.48550/arxiv.1904.03807 · pith_short_12: 7AIWOL2MTNSZ · pith_short_16: 7AIWOL2MTNSZK3WW · pith_short_8: 7AIWOL2M

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/7AIWOL2MTNSZK3WWOWANSGAXB5 \
  | 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: f811672f4c9b65956ed67580d918170f512a093eb1dba4515432c85e96c3e874

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c67bf49d122ff0daf100856fca34912721f3a100920dc4d26f2e249d9440feae",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-04-08T02:52:57Z",
    "title_canon_sha256": "7eebc075dc54f5847a1a843594216f1cc1f3fb8e016258c53ec7e728aedeb774"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03807",
    "kind": "arxiv",
    "version": 1
  }
}