Pith Number

pith:IN6PPL4L

pith:2026:IN6PPL4LXSO3BCAGHL4RAV4C2Q

not attested not anchored not stored refs pending

A MATLAB Tool for the Stable Generation of Matrix Polynomial Evaluation Schemes with Two-Product Savings

E. Defez, J. Ib\'a\~nez, J.M. Alonso, J. Sastre

arxiv:2607.28286 v1 · 2026-07-30 · 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{IN6PPL4LXSO3BCAGHL4RAV4C2Q}

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	2026-07-31T01:37:08.951891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

437cf7af8bbc9db088063af9105782d423aea6346a431f3535e78ae6b705722e

Aliases

arxiv: 2607.28286 · arxiv_version: 2607.28286v1 · doi: 10.48550/arxiv.2607.28286 · pith_short_12: IN6PPL4LXSO3 · pith_short_16: IN6PPL4LXSO3BCAG · pith_short_8: IN6PPL4L

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/IN6PPL4LXSO3BCAGHL4RAV4C2Q \
  | 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: 437cf7af8bbc9db088063af9105782d423aea6346a431f3535e78ae6b705722e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9962472da95c4c7fb20841a98064cddd05dd74d1a861b0c69a7066c21faf5b3b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-30T14:32:33Z",
    "title_canon_sha256": "1be5a76ac864e594f41dcf3bd86a3373ba1a9111212cc14f5765f5eb7a5c24f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.28286",
    "kind": "arxiv",
    "version": 1
  }
}