Pith Number

pith:LVO2MBCG

pith:2025:LVO2MBCGMXA4HASCLWA66N6EBX

not attested not anchored not stored refs pending

Matrices over a Hilbert space and their low-rank cross approximation

Stanislav Budzinskiy

arxiv:2505.05134 v2 · 2025-05-08 · math.NA · 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{LVO2MBCGMXA4HASCLWA66N6EBX}

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	2026-06-26T00:15:22.026307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d5da6044665c1c382425d81ef37c40deff7b96ea160b4cb4577553be7b51a31

Aliases

arxiv: 2505.05134 · arxiv_version: 2505.05134v2 · doi: 10.48550/arxiv.2505.05134 · pith_short_12: LVO2MBCGMXA4 · pith_short_16: LVO2MBCGMXA4HASC · pith_short_8: LVO2MBCG

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/LVO2MBCGMXA4HASCLWA66N6EBX \
  | 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: 5d5da6044665c1c382425d81ef37c40deff7b96ea160b4cb4577553be7b51a31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0588c0d3f29bade0f511e8f27ab1d705cde388d4b81df0af8f8cd56391d402c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-05-08T11:11:20Z",
    "title_canon_sha256": "b23d854e682036f8244d33e1f12e6f8cc80f9e3e7f59716603784be1002649b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.05134",
    "kind": "arxiv",
    "version": 2
  }
}