Pith Number

pith:JQPMICXJ

pith:2024:JQPMICXJF2AD3F22XGZCSIWCPC

not attested not anchored not stored refs pending

A Preconditioned Version of a Nested Primal-Dual Algorithm for Image Deblurring

Giuseppe Scarlato, Marco Donatelli, Rolf Krause, Stefano Aleotti

arxiv:2409.13454 v1 · 2024-09-20 · 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{JQPMICXJF2AD3F22XGZCSIWCPC}

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	2026-07-05T11:06:23.556765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c1ec40ae92e803d975ab9b22922c278a933f6dc34e53c0d1c18bb5c4700f109

Aliases

arxiv: 2409.13454 · arxiv_version: 2409.13454v1 · doi: 10.48550/arxiv.2409.13454 · pith_short_12: JQPMICXJF2AD · pith_short_16: JQPMICXJF2AD3F22 · pith_short_8: JQPMICXJ

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/JQPMICXJF2AD3F22XGZCSIWCPC \
  | 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: 4c1ec40ae92e803d975ab9b22922c278a933f6dc34e53c0d1c18bb5c4700f109

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2d6369909f00822d7184e0dcb270b1f31ae6bce7df10266abaedb90e2b9870d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-09-20T12:36:03Z",
    "title_canon_sha256": "30818b455e4f77e92f1323a50a979a5f06e8627573cb05ebc437e18b354c0162"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.13454",
    "kind": "arxiv",
    "version": 1
  }
}