Pith Number

pith:IAROY3QV

pith:2013:IAROY3QVFW6D76YUIW7S6U2J4I

not attested not anchored not stored refs pending

Incoherence-Optimal Matrix Completion

Yudong Chen

arxiv:1310.0154 v4 · 2013-10-01 · cs.IT · cs.LG · math.IT · 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{IAROY3QVFW6D76YUIW7S6U2J4I}

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	2026-05-18T00:59:03.727535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4022ec6e152dbc3ffb1445bf2f5349e221595e36b4386a946aa9d092602c3c20

Aliases

arxiv: 1310.0154 · arxiv_version: 1310.0154v4 · doi: 10.48550/arxiv.1310.0154 · pith_short_12: IAROY3QVFW6D · pith_short_16: IAROY3QVFW6D76YU · pith_short_8: IAROY3QV

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/IAROY3QVFW6D76YUIW7S6U2J4I \
  | 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: 4022ec6e152dbc3ffb1445bf2f5349e221595e36b4386a946aa9d092602c3c20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78820c5f60d1e85a40b313091cfc1fe0bafd2cf94e695c70af70a882c8258c0a",
    "cross_cats_sorted": [
      "cs.LG",
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-10-01T06:37:18Z",
    "title_canon_sha256": "4670dc6e2a46ea7701b495e4f2de92ede97f87107507e63e1a3de8f3e50fae57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.0154",
    "kind": "arxiv",
    "version": 4
  }
}