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Fig. 5 - Solidity smart contract for vaccination records relying on Ethere- um blockchain. Furthermore, in Fig. 5, the code of Solidity smart con- tract used for vaccination record storage and retrieval is shown. As it can be seen, for each person, the type of vac- cine is stored together with timestamps for both doses. The test records are kept similarly, while we have test_type in- stead of vaccine_type and only one timestamp.

Figure 5 - Solidity smart contract for vaccination records relying on Ethere- um blockchain. Furthermore, in Fig. 5, the code of Solidity smart con- tract used for vaccination record storage and retrieval is shown. As it can be seen, for each person, the type of vac- cine is stored together with timestamps for both doses. The test records are kept similarly, while we have test_type in- stead of vaccine_type and only one timestamp.

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Fig. 2 - Gamified sightseeing workflow overview: 1) AR applica- tion run in mobile device web browser 2) Click/touch on 3D object 3) Redirection to info pages and questions 4) Activation of Apps Script triggers responsible for business logic, data storage and retrieval 5) Updated view on data inside AppSheet application.
Fig. 2 - Gamified sightseeing workflow overview: 1) AR applica- tion run in mobile device web browser 2) Click/touch on 3D object 3) Redirection to info pages and questions 4) Activation of Apps Script triggers responsible for business logic, data storage and retrieval 5) Updated view on data inside AppSheet application.
Table I CONCLUSION
Table I CONCLUSION
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Mobile apps
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