Pith Number

pith:K6V5ZHFC

pith:2013:K6V5ZHFCO2JQFC2F5WOLTN6NS3

not attested not anchored not stored refs pending

Astronomical Image Denoising Using Dictionary Learning

Jalal Fadili, Jean-Luc Starck, Simon Beckouche

arxiv:1304.3573 v1 · 2013-04-12 · astro-ph.IM · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K6V5ZHFCO2JQFC2F5WOLTN6NS3}

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	2026-05-18T01:50:33.517262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57abdc9ca27693028b45ed9cb9b7cd96cbf6a7b05bd7376dc13ff2af1d0e8434

Aliases

arxiv: 1304.3573 · arxiv_version: 1304.3573v1 · doi: 10.48550/arxiv.1304.3573 · pith_short_12: K6V5ZHFCO2JQ · pith_short_16: K6V5ZHFCO2JQFC2F · pith_short_8: K6V5ZHFC

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/K6V5ZHFCO2JQFC2F5WOLTN6NS3 \
  | 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: 57abdc9ca27693028b45ed9cb9b7cd96cbf6a7b05bd7376dc13ff2af1d0e8434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86d7eff61e45c5ed9b1a84d9dda7f0bd068d501ac4ccae74d4d89bf968ea758e",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-04-12T08:57:25Z",
    "title_canon_sha256": "ddcdc1ea9dccc9abd05a17add25cf6c2e5a2a6b74622478d93bce10d5cd4e5fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3573",
    "kind": "arxiv",
    "version": 1
  }
}