Pith Number

pith:XSZ2S2SG

pith:2025:XSZ2S2SG33IYIIC2OPIH7GA3RX

not attested not anchored not stored refs pending

A variable dimension sketching strategy for nonlinear least-squares

Benedetta Morini, Greta Malaspina, Stefania Bellavia

arxiv:2506.03965 v1 · 2025-06-04 · 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{XSZ2S2SG33IYIIC2OPIH7GA3RX}

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	2026-07-05T11:15:54.626445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcb3a96a46ded184205a73d07f981b8dc4fe4b4ab68cea88e7799a431ded0420

Aliases

arxiv: 2506.03965 · arxiv_version: 2506.03965v1 · doi: 10.48550/arxiv.2506.03965 · pith_short_12: XSZ2S2SG33IY · pith_short_16: XSZ2S2SG33IYIIC2 · pith_short_8: XSZ2S2SG

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/XSZ2S2SG33IYIIC2OPIH7GA3RX \
  | 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: bcb3a96a46ded184205a73d07f981b8dc4fe4b4ab68cea88e7799a431ded0420

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fab955d69896f118d52db081d77682ff056d535c096dd1ebeb0f4e8eb8d36e76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-06-04T13:58:04Z",
    "title_canon_sha256": "12d19c6f9b85002663fa667b20fe4569abb20fab264c3c7265733acbb6b050b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.03965",
    "kind": "arxiv",
    "version": 1
  }
}