Pith Number

pith:MJA3VV6Y

pith:2018:MJA3VV6YP5IC5JRGMWVQ6IBCRA

not attested not anchored not stored refs pending

An alternating minimization algorithm for Factor Analysis

Augusto Ferrante, Mattia Zorzi, Valentina Ciccone

arxiv:1806.04433 v1 · 2018-06-12 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MJA3VV6YP5IC5JRGMWVQ6IBCRA}

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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.

Cited by

1 paper in Pith

A Saddle Point Algorithm for Robust Data-Driven Factor Model Problems

Receipt and verification

First computed	2026-05-18T00:13:35.537104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6241bad7d87f502ea62665ab0f2022881adab0d44684a51cdca56c6a48b09ca2

Aliases

arxiv: 1806.04433 · arxiv_version: 1806.04433v1 · doi: 10.48550/arxiv.1806.04433 · pith_short_12: MJA3VV6YP5IC · pith_short_16: MJA3VV6YP5IC5JRG · pith_short_8: MJA3VV6Y

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/MJA3VV6YP5IC5JRGMWVQ6IBCRA \
  | 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: 6241bad7d87f502ea62665ab0f2022881adab0d44684a51cdca56c6a48b09ca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b0f66ad5ca9820df0d2c9132f25ac3436abfbc53df77602daf94687745c05ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-06-12T10:54:45Z",
    "title_canon_sha256": "0c5bd7b95ce75f0729aed8bfcac45d7942c39e10b5885a040e8a0fe73a03f4e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04433",
    "kind": "arxiv",
    "version": 1
  }
}