Pith Number

pith:R5NU3KPO

pith:2010:R5NU3KPOYTR7XOL5VS3JAKIQJJ

not attested not anchored not stored refs pending

Wedderburn rank reduction and Krylov subspace method for tensor approximation. Part 1: Tucker case

D. V. Savostyanov, I. V. Oseledets, S. A. Goreinov

arxiv:1004.1986 v2 · 2010-04-12 · math.NA · cs.DS · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R5NU3KPOYTR7XOL5VS3JAKIQJJ}

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	2026-05-18T04:03:17.740855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f5b4da9eec4e3fbb97dacb69029104a4b1601ef9d13c4277b82b42a2091db7a

Aliases

arxiv: 1004.1986 · arxiv_version: 1004.1986v2 · doi: 10.48550/arxiv.1004.1986 · pith_short_12: R5NU3KPOYTR7 · pith_short_16: R5NU3KPOYTR7XOL5 · pith_short_8: R5NU3KPO

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/R5NU3KPOYTR7XOL5VS3JAKIQJJ \
  | 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: 8f5b4da9eec4e3fbb97dacb69029104a4b1601ef9d13c4277b82b42a2091db7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "883606100198c6a474287199d9773cb1555eac8c3ed2057c338641085cf34f17",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-04-12T15:07:43Z",
    "title_canon_sha256": "e6e9ec1c168bc5ff7461687245a2df254ef954a44d8755acfee7172c64fa6e3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1986",
    "kind": "arxiv",
    "version": 2
  }
}