2.2.2. Blockchain technologies
A blockchain is a continuously growing list of records, called blocks, which are linked and
secured using cryptography. Each block typically contains a hash pointer as a link to a
previous block, a timestamp and transaction data.
By design blockchains are inherently resistant to modification of the data. The first
distributed blockchain was conceptualised by Satoshi Nakamoto in 2008 and implemented
the following year as a core component of the digital currency bitcoin, where it serves as the
public ledger for all transactions.
The first implementation of blockchain technology for the seafood industry was initiated in
2017. Three companies partnered in order to create the first dedicated blockchain system for
origin data and tracking for the international seafood industry –the Earth Twine-Stratis
Platform. This platform combines collaborative technologies (Earth Twine, SPARKL, Stratis),
and will provide the means to increase traceability for fish products, directly targeting IUU
fishing products mixed within the value chain of legal products.
Nevertheless, this option is still hypothetical as a competitor will probably not freely share
commercial data. Therefore, a critical mass of interest group needs to be fostered for further
application and implementation.
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