Licenze e fonti dei dati
Ultimo aggiornamento: 5 ottobre 2026
RealShelf si regge sul lavoro di biblioteche, archivi, progetti aperti e sviluppatori di software libero. Qui trovi da dove vengono i dati che vedi nelle schede dei libri e le licenze del software che usiamo, con gli avvisi che queste licenze chiedono di riportare.
1. Fonti dei dati
Quando una fonte chiede il credito, lo trovi anche accanto ai suoi dati: nella scheda del libro e sotto i risultati della ricerca.
- Open Library — Schede bibliografiche, edizioni, copertine e la classifica «Mondo» di Esplora. Progetto di Internet Archive. Dati usati secondo i termini di Internet Archive; le copertine restano dei rispettivi titolari. openlibrary.org · Termini di Internet Archive
- Google Books — Dati delle edizioni, copertine, sunti e anteprime delle pagine. Dati usati secondo i termini dell'API di Google Books, che chiedono il credito accanto ai risultati. Credito: «Powered by Google». Termini dell'API di Google Books
- Internet Archive — Libri digitalizzati da sfogliare e metadati d'archivio. Ogni opera ha i suoi diritti; il servizio segue i termini di Internet Archive. Termini di Internet Archive
- Catalogo SBN – ICCU — Il catalogo delle biblioteche italiane: edizioni, pagine, altezza e copertine. Dati con licenza Creative Commons Attribuzione 3.0 Italia. Credito: «Catalogo SBN – ICCU, CC BY 3.0 IT». opac.sbn.it · CC BY 3.0 IT
- Deutsche Nationalbibliothek — Le edizioni dell'area tedesca: altezza e prezzo di copertina. Metadati rilasciati nel pubblico dominio (CC0 1.0). dnb.de · CC0 1.0
- Bibliothèque nationale de France — Le edizioni dell'area francese: pagine e altezza. Dati con Licence Ouverte / Open Licence (Etalab), con attribuzione «BnF». Credito: «BnF». catalogue.bnf.fr · Licence Ouverte
- Grand Comics Database — Serie, numeri ed editori dei fumetti, anche senza ISBN. Dati con licenza Creative Commons Attribuzione – Condividi allo stesso modo 4.0; le immagini di copertina restano dei rispettivi titolari. Credito: «Grand Comics Database». comics.org · CC BY-SA 4.0
- Crossref — Le pubblicazioni accademiche nella ricerca. Metadati aperti, interrogati secondo le regole dell'API pubblica di Crossref. API di Crossref
- HathiTrust — Riscontri di catalogo per le edizioni digitalizzate. Dati del catalogo HathiTrust; ogni opera ha i suoi diritti. hathitrust.org
- Wikidata — Opere, autori, premi e testate delle riviste. Dati nel pubblico dominio (CC0 1.0). Licenza di Wikidata
- Wikipedia — Le classifiche di Esplora (le voci più lette) e la correzione dei refusi nella ricerca. Usiamo statistiche di lettura e suggerimenti, non i testi delle voci; i testi sono CC BY-SA 4.0. Condizioni d'uso di Wikimedia
- Wikisource — I testi liberi delle opere di pubblico dominio, nella sala di lettura. Testi di pubblico dominio trascritti dai volontari di Wikisource; le pagine del sito sono CC BY-SA 4.0. it.wikisource.org
- Wikimedia Commons — I loghi delle testate delle riviste. Ogni file ha la licenza indicata nella sua pagina su Commons. commons.wikimedia.org
- eBay — Gli annunci in vendita da cui nasce la stima del valore (solo con un account). Dati usati secondo il contratto di licenza dell'API di eBay; la stima è un'indicazione, non una perizia. Licenza dell'API di eBay
- Pagine dei negozi online — Copertine e dati pubblici delle schede prodotto, quando i cataloghi non bastano. Marchi, immagini e testi restano dei rispettivi negozi ed editori.
- DESNZ / DEFRA (Regno Unito) — Il fattore di emissione della carta per la stima della CO₂ di un libro. Contiene informazioni del settore pubblico concesse con la Open Government Licence v3.0. Open Government Licence v3.0
- Banca centrale europea — I tassi di cambio per convertire in euro i prezzi in altre valute, tramite il servizio Frankfurter. Tassi di riferimento pubblicati dalla BCE, riutilizzabili citando la fonte. frankfurter.app
2. Copertine, sunti e marchi
Copertine, sunti, immagini e marchi appartengono agli editori, agli autori e ai rispettivi titolari. RealShelf li mostra per riconoscere un libro e descriverlo, insieme al nome della fonte da cui arrivano. Se sei titolare di un contenuto e vuoi che non compaia più, scrivi a supporto@realshelf.app.
3. Software open source
Il sito e le app sono costruiti con queste librerie. Per ognuna: versione, licenza e avviso di copyright. I testi integrali delle licenze sono in fondo alla pagina. Le librerie a loro volta ne includono altre, ciascuna con la propria licenza, riportata nel suo pacchetto.
- @capacitor/android 8.4.0 — MIT License
Copyright (c) 2017-present Drifty Co. - @capacitor/app 8.1.0 — MIT License
Copyright 2020-present Ionic - @capacitor/cli 8.4.0 — MIT License
Copyright (c) 2017-present Drifty Co. - @capacitor/core 8.4.0 — MIT License
Copyright (c) 2017-present Drifty Co. - @capacitor/haptics 8.0.2 — MIT License
Copyright 2020-present Ionic - @capacitor/ios 8.4.0 — MIT License
Copyright (c) 2017-present Drifty Co. - @capacitor/keyboard 8.0.5 — MIT License
Copyright 2020-present Ionic - @react-three/drei 10.7.7 — MIT License
Copyright (c) 2020 react-spring - @react-three/fiber 9.6.1 — MIT License
© gli autori del progetto (Paul Henschel) - @react-three/rapier 2.2.0 — MIT License
© gli autori del progetto - @sentry/nextjs 10.63.0 — MIT License
Copyright (c) 2021 Functional Software, Inc. dba Sentry - @supabase/supabase-js 2.108.1 — MIT License
Copyright (c) 2020 Supabase - @zxing/browser 0.2.0 — MIT License
Copyright (c) 2018 ZXing for JS - @zxing/library 0.22.0 — Apache License 2.0
Copyright (c) 2005 Sun Microsystems, Inc. · Copyright © 2010-2014 University of Manchester · Copyright © 2010-2015 Stian Soiland-Reyes · Copyright © 2015 Peter Hull - lucide-react 0.468.0 — ISC License
Copyright (c) for portions of Lucide are held by Cole Bemis 2013-2022 as part of Feather (MIT). All other copyright (c) for Lucide are held by Lucide Contributors 2022. - next 15.5.26 — MIT License
Copyright (c) 2025 Vercel, Inc. - onnxruntime-web 1.27.0 — MIT License
© gli autori del progetto (fs-eire) - posthog-js 1.396.4 — Apache License 2.0
Copyright 2020 Posthog / Hiberly, Inc. · Copyright 2015 Mixpanel, Inc. · Copyright (c) 2012 Functional Software, Inc. dba Sentry · Copyright (c) 2017 Sentry · Copyright (c) Meta Platforms, Inc. and affiliates. · Copyright (c) 2015-present 650 Industries, Inc. (aka Expo) - ppu-paddle-ocr 6.2.0 — MIT License
Copyright (c) 2025 PT. Perkasa Pilar Utama - react 19.2.7 — MIT License
Copyright (c) Meta Platforms, Inc. and affiliates. - react-dom 19.2.7 — MIT License
Copyright (c) Meta Platforms, Inc. and affiliates. - tesseract.js 7.0.0 — Apache License 2.0
© gli autori del progetto - three 0.169.0 — MIT License
Copyright © 2010-2024 three.js authors
4. Modelli, caratteri e componenti delle app
- Inter, di Rasmus Andersson — Il carattere del sito e dell'app. SIL Open Font License 1.1. github.com/rsms/inter · SIL Open Font License
- U²-Net (u2netp), di Xuebin Qin e altri — Il modello che scontorna il libro nelle foto, sul dispositivo. Apache License 2.0. github.com/xuebinqin/U-2-Net
- Tesseract OCR e i suoi dati linguistici — La lettura del testo dalle foto, sul dispositivo. Apache License 2.0. github.com/tesseract-ocr
- Modelli di PaddleOCR — La lettura del testo di copertine e dorsi dalle foto, sul dispositivo. Apache License 2.0. github.com/PaddlePaddle/PaddleOCR
- Basis Universal, di Binomial LLC — La decodifica delle texture compresse della scena 3D. Apache License 2.0. github.com/BinomialLLC/basis_universal
- Texture di Poly Haven, di Jenelle van Heerden e Rob Tuytel — Le foto dei materiali dello scaffale 3D: rovere, noce, frassino, ciliegio, multistrato, perline, intonaco, cemento e mattoni (Oak Veneer 01, Walnut Veneer, Ash Veneer, Cherry Veneer, Plywood, White Planks Clean, White Plaster 02, Plaster Grey 04, Red Brick). Creative Commons CC0 1.0 (pubblico dominio). polyhaven.com · Licenza di Poly Haven
- Texture di ambientCG — Le foto della laccatura e dei metalli dello scaffale 3D (Metal 028, Metal 027, Metal 009). Creative Commons CC0 1.0 (pubblico dominio). ambientcg.com · Licenza di ambientCG
- AndroidX e CameraX — L'app Android: interfaccia e fotocamera. Apache License 2.0. developer.android.com/jetpack/androidx
- Google ML Kit — L'app Android: lettura dei codici a barre e del testo, sul dispositivo. Termini d'uso di ML Kit. developers.google.com/ml-kit/terms
5. Testi delle licenze
Ogni testo vale per tutte le librerie con quella licenza, insieme all'avviso di copyright riportato accanto al loro nome.
MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Apache License 2.0
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http://www.apache.org/licenses/
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