Pith Number

pith:4MGZOPNF

pith:2012:4MGZOPNFDBXZUQM3WCCE6MEWID

not attested not anchored not stored refs pending

Gray Image extraction using Fuzzy Logic

Koushik Mondal, Paramartha Dutta, Siddhartha Bhattacharyya

arxiv:1206.4391 v1 · 2012-06-20 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4MGZOPNFDBXZUQM3WCCE6MEWID}

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	2026-05-18T03:53:05.989589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e30d973da5186f9a419bb0844f309640c21f0594587a1f4ae4b9a6882ca4fc6b

Aliases

arxiv: 1206.4391 · arxiv_version: 1206.4391v1 · doi: 10.48550/arxiv.1206.4391 · pith_short_12: 4MGZOPNFDBXZ · pith_short_16: 4MGZOPNFDBXZUQM3 · pith_short_8: 4MGZOPNF

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/4MGZOPNFDBXZUQM3WCCE6MEWID \
  | 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: e30d973da5186f9a419bb0844f309640c21f0594587a1f4ae4b9a6882ca4fc6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9adcd9de1e1e3c07a1b3ac5051ac8083fa2cce0d219a610b2534e435a6b6bc4d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-06-20T06:16:18Z",
    "title_canon_sha256": "3f9fe132c4af45fa11a8f9f3ad47652f36590159e3d50b2660490ba35d834e7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4391",
    "kind": "arxiv",
    "version": 1
  }
}