Pith Number

pith:JLFR7BIR

pith:2013:JLFR7BIRJXL3XHOVQWYTXJJRVO

not attested not anchored not stored refs pending

Performing edge detection by difference of Gaussians using q-Gaussian kernels

Alneu de A. Lopes, Lilian Berton, Lucas Assirati, N\'ubia R. da Silva, Odemir M. Bruno

arxiv:1311.2561 v2 · 2013-11-11 · cs.CV · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JLFR7BIRJXL3XHOVQWYTXJJRVO}

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	2026-05-18T01:46:32.295571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4acb1f85114dd7bb9dd585b13ba531abb4bd407a6ed828be2854e1d7a3411265

Aliases

arxiv: 1311.2561 · arxiv_version: 1311.2561v2 · doi: 10.48550/arxiv.1311.2561 · pith_short_12: JLFR7BIRJXL3 · pith_short_16: JLFR7BIRJXL3XHOV · pith_short_8: JLFR7BIR

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/JLFR7BIRJXL3XHOVQWYTXJJRVO \
  | 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: 4acb1f85114dd7bb9dd585b13ba531abb4bd407a6ed828be2854e1d7a3411265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c688783218589ceaac4065e7cfb1dbde50700c3b76c92aed87e0f8518c193f7d",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-11-11T20:14:11Z",
    "title_canon_sha256": "869a6a2e66b62bbbb8ed7d073e0fd4b0c77cc0029a5ba418a264c976a2d4907d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2561",
    "kind": "arxiv",
    "version": 2
  }
}