Pith Number

pith:PWAS7HYR

pith:2025:PWAS7HYRRTREMYMWAWIFOQXO43

not attested not anchored not stored refs pending

Sampling Kantorovich operators for speckle noise reduction and gap filling with some applications to remote sensing

Danilo Costarelli, Mariarosaria Natale

arxiv:2505.02422 v3 · 2025-05-05 · 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{PWAS7HYRRTREMYMWAWIFOQXO43}

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	2026-06-10T01:10:56.305872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d812f9f118ce246619605905742eee6ce93840adde5eea26e8c25ae5119e55b

Aliases

arxiv: 2505.02422 · arxiv_version: 2505.02422v3 · doi: 10.48550/arxiv.2505.02422 · pith_short_12: PWAS7HYRRTRE · pith_short_16: PWAS7HYRRTREMYMW · pith_short_8: PWAS7HYR

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/PWAS7HYRRTREMYMWAWIFOQXO43 \
  | 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: 7d812f9f118ce246619605905742eee6ce93840adde5eea26e8c25ae5119e55b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "217a6ed3777210230c5f5b4b43802b0b239224b43049cf9e753c535bd8393e4c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-05-05T07:38:17Z",
    "title_canon_sha256": "0efc4963c6fa26114cfdd73d5ac6f0a4b3467f2e16492e6922f0e39b663e3388"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.02422",
    "kind": "arxiv",
    "version": 3
  }
}