Pith Number

pith:6RJITM4Z

pith:2017:6RJITM4ZEGD6XPF2PLHHTNC6IG

not attested not anchored not stored refs pending

Alternating least squares as moving subspace correction

Andr\'e Uschmajew, Ivan Oseledets, Maxim Rakhuba

arxiv:1709.07286 v2 · 2017-09-21 · math.NA · 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{6RJITM4ZEGD6XPF2PLHHTNC6IG}

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	2026-05-17T23:56:34.391642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f45289b3992187ebbcba7ace79b45e41b6e22f92e71093a0dbeb41fdd248a363

Aliases

arxiv: 1709.07286 · arxiv_version: 1709.07286v2 · doi: 10.48550/arxiv.1709.07286 · pith_short_12: 6RJITM4ZEGD6 · pith_short_16: 6RJITM4ZEGD6XPF2 · pith_short_8: 6RJITM4Z

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/6RJITM4ZEGD6XPF2PLHHTNC6IG \
  | 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: f45289b3992187ebbcba7ace79b45e41b6e22f92e71093a0dbeb41fdd248a363

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae9435b73367e2569667e10ea79c446096380dd27e7886607e5ccc9e69e2f3f9",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-21T12:47:48Z",
    "title_canon_sha256": "fe4ae874608813e07a075e540506801af3f0f6e0d6d970eabe7c61c270f38ebf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.07286",
    "kind": "arxiv",
    "version": 2
  }
}