Pith Number

pith:3OXBGHA2

pith:2016:3OXBGHA2QZDGZO5MSEYSEAUCKC

not attested not anchored not stored refs pending

Matrix Completion has No Spurious Local Minimum

Jason D. Lee, Rong Ge, Tengyu Ma

arxiv:1605.07272 v4 · 2016-05-24 · cs.LG · cs.DS · 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{3OXBGHA2QZDGZO5MSEYSEAUCKC}

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	2026-05-18T00:10:14.062230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbae131c1a86466cbbac913122028250873dce127a586b9e4fb88786c66faac4

Aliases

arxiv: 1605.07272 · arxiv_version: 1605.07272v4 · doi: 10.48550/arxiv.1605.07272 · pith_short_12: 3OXBGHA2QZDG · pith_short_16: 3OXBGHA2QZDGZO5M · pith_short_8: 3OXBGHA2

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/3OXBGHA2QZDGZO5MSEYSEAUCKC \
  | 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: dbae131c1a86466cbbac913122028250873dce127a586b9e4fb88786c66faac4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1a99af4e047c15a916ffe11896e9ebf76de1be3822c62473aac4e016871b1a0",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2016-05-24T02:53:27Z",
    "title_canon_sha256": "6704223f5ad3c2a6186691979c4e94a1842ac30b0fc4d5a1c8c3a31227b8b738"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07272",
    "kind": "arxiv",
    "version": 4
  }
}