Judul: Back End Blockchain Platform Development for Shallot Supply Chain System
Abstrak: Tingginya angka konsumsi bawang merah di masyarakat Indonesia tentunya harus diiringi dengan sistem rantai pasok yang dapat mencatat semua informasi yang terjadi dalam transaksi, oleh karena itu ketertelusuran suatu produk tentunya menjadi hal yang penting jika ingin memastikan kualitas dan keamanan dari produk. Namun mayoritas sistem rantai pasok yang saat ini diterapkan tidak mendukung ketertelusuran dari produk. Penelitian ini bertujuan untuk mengembangkan sebuah sistem rantai pasok bawang merah berbasis blockchain dengan menggunakan metode Prototyping dan framework Hyperledger Fabric. Blockchain menyimpan satu atau kumpulan transaksi menjadi bentuk blok kemudian disambungkan dengan blok lainnya sehingga dengan mengakses transaksi, selanjutnya pengguna dapat mengakses transaksi berkaitan lainnya. Pengembangan telah menghasilkan sebuah sistem rantai pasok berbasis blockchain yang dapat menelusuri transaksi yang terjadi dari penangkar hingga pedagang, sistem diberi nama Bawang Merah Blockchain (BC)-Network. Application Programming Interface (API) pada BC-Network telah diuji dengan Postman dan dapat digunakan oleh sisi front end., The high rate of consumption of shallots in Indonesian society must be followed by a supply chain system that can record all information that occurrs in transactions, therefore traceability of a product is important if you want to ensure the quality and safety of the product. Unfortunately the most of the supply chain system does not yet support product traceability. This research aims to develop a blockchain-based shallot supply chain system using the Prototyping method and the Hyperledger Fabric framework. Blockchain stores a collection of transactions into blocks which are then linked with other blocks so that by accessing a transaction, users can access other related transactions. The development has successfully created a supply chain system that is able to trace the transaction that happened from farmer to merchant, the system named Bawang Merah Blockchain (BC)-Network. Application Programming Interface (API) has been tested using Postman and can be used by the front end side.
Keyword: aktor, application programming interface, bawang merah, blockchain, prototyping, rantai pasok

Judul: Development of Agriblock Blockchain Platform for Traceability in Agricultural Products Supply Chain
Abstrak: Manajemen rantai pasok produk pertanian merupakan proses yang mencakup manajemen aliran informasi dan barang dari penangkar hingga ke konsumen akhir. Penerapan teknologi blockchain pada rantai pasok dapat meningkatkan nilai jual barang dan kepercayaan konsumen terhadap barang yang dibeli. Penelitian ini berfokus pada pengembangan platform blockchain Agriblock untuk meningkatkan ketertelusuran dalam rantai pasok produk pertanian, khususnya bawang merah. Platform blockchain Agriblock dikembangkan menggunakan NodeJs dengan bahasa pemrograman Typescript. Platform blockchain Agriblock yang dihasilkan terdiri atas tiga lapisan utama: infrastruktur, komputasi terdistribusi, dan platform. Lapisan infrastruktur meliputi komponen node, penyimpanan, dan jaringan pada blockchain. Lapisan komputasi terdistribusi mencakup komponen blok, transaksi, protokol konsensus, dan fungsi hash. Lapisan platform terdiri atas komponen REST API yang memfasilitasi komunikasi data dengan jaringan blockchain. Penelitian ini diharapkan dapat menjadi landasan awal dalam pengembangan platform blockchain yang difokuskan untuk manajemen rantai pasok produk pertanian., Supply chain management of agricultural products involves managing the flow of information and goods from breeders to end consumers. The use of blockchain technology in the supply chain can enhance the value of goods and increase consumer trust in the purchased products. This research focuses on the development of the Agriblock blockchain platform to improve traceability in the supply chain of agricultural products, especially shallots. The blockchain platform was developed using NodeJs with Typescript programming language. The resulting Agriblock blockchain platform consists of three main layers: infrastructure, distributed computing, and platform. The infrastructure layer includes node components, storage, and network of the blockchain. The distributed computing layer encompasses block components, transactions, consensus protocols, and hash functions. The platform layer consists of REST API components that facilitate data communication with the blockchain network. This research is expected to be an early foundation in the development of a blockchain platform that focused on agricultural product supply chain management.
Keyword: shallot, agriculture, Smallholder Palm Oil Supply Chain, traceability, blockchain

Judul: Distribution and Diversity of Ectoparasite Mites on Geckos in Indonesia
Abstrak: Data on the diversity and dispersal of parasitic mites on house geckos in Indonesia are very scarce. In this work, the distribution and diversity of mites living on three species of house geckos, namely Cosymbotus platyurus, Hemidactylus frenatus, and H. garnotii collected throughout Indonesia, has been elaborated. Geckos and mites were captured and immediately preserved in 70% ethanol. Whole mount of the mites was prepared by clearing in lactophenol followed by mounting on polyvinyl lactophenol solutions. The SEM preparation was conducted to examine the detail morphological characters of the mites. The results showed that among 448 individuals of geckos, 221 geckos were infected by Geckobia mites. Prevalences of C. platyurus, H. frenatus, and H. garnotii infested by mites were 14.8%, 50.69%, and 79.6%, respectively. Three different spesies of Geckobia (G1, G2, and G3) could be differentiated; and based on similarities of their morphological characters to ones described in published literatures, Geckobia G2 is Geckobia glebosum and Geckobia G3 is Geckobia bataviensis while G1 could not be identified to the species level. The highest mean intensity of Geckobia G1 infestation was found on H. garnotii (I=7.0), G. glebosum infestation on H. frenatus (I=3.5), and G. bataviensis infestation on H. garnotii (I=11.8). In general, C. platyurus was infested by the least number of mites. Geckobia G1 were found living on the skin folds on the claws, G. glebosum were found mainly on the body and thigh, and G. bataviensis were found on almost all parts of the host’s body. Geckobia mites are distributed randomly throughout Indonesian Archipelago, following the pattern of distribution of their hosts. So it is concluded that Geckobia G1, G. glebosum, and G. bataviensis are sympatric.
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