Pith Number

pith:4J52B7N6

pith:2011:4J52B7N665NB32E22Q2B5PE5M3

not attested not anchored not stored refs pending

Beyond pixels and regions: A non local patch means (NLPM) method for content-level restoration, enhancement, and reconstruction of degraded document images

Mohamed Cheriet, Reza Farrahi Moghaddam

arxiv:1109.4920 v3 · 2011-09-22 · cs.CV · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4J52B7N665NB32E22Q2B5PE5M3}

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	2026-05-18T03:34:25.663107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e27ba0fdbef75a1de89ad4341ebc9d66ec8e82f410bbcc7224dc31839072c9e5

Aliases

arxiv: 1109.4920 · arxiv_version: 1109.4920v3 · doi: 10.48550/arxiv.1109.4920 · pith_short_12: 4J52B7N665NB · pith_short_16: 4J52B7N665NB32E2 · pith_short_8: 4J52B7N6

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/4J52B7N665NB32E22Q2B5PE5M3 \
  | 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: e27ba0fdbef75a1de89ad4341ebc9d66ec8e82f410bbcc7224dc31839072c9e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9410a7f6db72d0ba0d2012ac3bce8e5bd9b702a556787f187df1d162efb670d5",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-09-22T19:24:58Z",
    "title_canon_sha256": "0b748a452344c09dae7af32ded3ec1d886b85ee8224b81a101f00d2758946989"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4920",
    "kind": "arxiv",
    "version": 3
  }
}