10 januari 2013 Herman Rienstra

Paris Blockchain Conference

blockchain, originally block chainis a continuously growing list of records, called blocks, which are linked and secured using cryptographyEach 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. It is “an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way”. For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once recorded, the data in any given block cannot be altered retroactively without the alteration of all subsequent blocks, which requires collusion of the network majority.

Blockchains are secure by design and are an example of a distributed computing system with high Byzantine fault tolerance. Decentralized consensus has therefore been achieved with a blockchain. This makes blockchains potentially suitable for the recording of events, medical records, and other records management activities, such as identity management, transaction processing, documenting provenance, food traceability or voting.

The first blockchain was a white paper, written in 2008 by an anonymous person or group known as Satoshi Nakamoto and implemented in 2009 as a core component of bitcoin where it serves as the public ledger for all transactions. The invention of the blockchain for bitcoin made it the first digital currency to solve the double spending problem without the need of a trusted authority or central server. The bitcoin design has been the inspiration for other applications.

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Kamermuziek in de Koningszaal

De zondag van het concert in de Koningszaal is de leukste zondag van de maand.

KAMUKOZA wordt o.a. ondersteund door

Eén zondagmorgen per maand. Om 11.00 uur.
Voor het hele gezin!

Indien u problemen ondervindt bij het reserveren via de ticketstraat van ARTIS, kunt u contact opnemen met ARTIS: 020 5233 670 of info@artis.nl


€10 p.p.
(met ARTIS-lidmaatschap)

€12,50 p.p. (studenten)

€17,50 p.p. (normaal)

kinderen 6-12 gratis
(onder begeleiding volwassene)

Adres Koningszaal
Plantage Middenlaan 41
1018 CZ Amsterdam



Joh. Verhulstraat 125-2
1071 NA Amsterdam

Roeland Duijne
m +31 650 284975
e  directie@kamukoza.nl
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Hans Wijers voorzitter
Jack de Graaff vice voorzitter
Willemijn Jonker secretaris
Mariëtte Frie penningmeester