Pith Number

pith:JI5V2XLI

pith:2026:JI5V2XLIUZONLDR6THQ5K6CYTR

not attested not anchored not stored refs pending

Multilevel Preconditioning Strategies for Convex Optimization Methods in Image Deblurring

Claudia Binda, Marco Donatelli, Rolf Krause, Stefano Aleotti

arxiv:2607.10864 v1 · 2026-07-12 · 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{JI5V2XLIUZONLDR6THQ5K6CYTR}

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	2026-07-14T01:21:44.214254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a3b5d5d68a65cd58e3e99e1d578589c53764212f7d772d33ab3ba1dc60cb8fa

Aliases

arxiv: 2607.10864 · arxiv_version: 2607.10864v1 · doi: 10.48550/arxiv.2607.10864 · pith_short_12: JI5V2XLIUZON · pith_short_16: JI5V2XLIUZONLDR6 · pith_short_8: JI5V2XLI

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/JI5V2XLIUZONLDR6THQ5K6CYTR \
  | 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: 4a3b5d5d68a65cd58e3e99e1d578589c53764212f7d772d33ab3ba1dc60cb8fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbfbaf1aaca40d4a865478e627b2942eb54f35ff6d61f5d5626452ece97de56a",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-12T17:59:47Z",
    "title_canon_sha256": "338c9be946ae9ae64bb8d8c7a7fadbd6bf957ff4d7f67ce6de5433e34011f313"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.10864",
    "kind": "arxiv",
    "version": 1
  }
}