Liccium app

What can I do with Liccium?

Liccium allows content creators, rightsholders,
media organisations, and other users to:

  • generate, manage decentralised, content-derived
    identifiers for digital media assets (ISCC codes),
  • declare them on public blockchain networks,
  • inseparably bind metadata, rights, licenses and other claims to the content,
  • generate and verify credentials (VCs) and content certificates that proof authenticity of original content, identify creators and rightsholders, and verify their claims and attribution.

→ for a proper attribution and fair remuneration of creative works in
an increasingly decentralised and heterogeneous digital media environment.

This is rather abstract ...

Ok, the process starts with your content on your local device or cloud storage. You can select a digital media file, and in seconds Liccium will extract a unique ID from it: the ISCC.

The ISCC is derived from the digital media asset itself, there is no need to manually select and apply an identifier to the content. From now on it will represent your content in any transaction as a persistent reference of your digital asset.

As a second step you can declare the ISCC on a blockchain. Your digital signature transparently connects your pseudonymous identity to the ISCC that represents your content. Nothing more and nothing less.

As a consequence of this declaration, you will receive a unique declaration ID. The ISCC-ID is owned by you, globally unique and resolvable. This registration ID retains a record of the registration transaction, connecting you (respectively your pseudonymous identity) to the content.

The ISCC-ID is important. Because from now on you can use it to attach information to the content: metadata, ownership information, licensing or rights management information, reviews etc., whatever seems relevant for you to associate with the content  – and this data will always and unambiguously be associated with your content and your pseudonymous identity.

What is required to register content with Liccium?

To register content on a public blockchain you need a wallet. Liccium will allow to declare ISCC codes on various blockchains. In order to perform transactions on Ethereum, Polygon and other EVM-based blockchains, you need to have a MetaMask wallet and create an address for each network.

In general, creating a MetaMask address is super useful, relatively easy and well documented. You can find further information on and a lot of answered questions on their FAQ list:

For the transactions you need the tokens of the selected blockchain network in order to pay for gas or transaction fees.

Did someone mention the word 'blockchain'?

Liccium will support PoS blockchains Ethereum and Polygon. In the future we will consider other 2nd layer protocols, like Arbitrum, Optimism, or blockchains like Tezos and NEAR.


And there are no costs involved in using Liccium?

Rightsholders can declare ISCC codes and metadata free of charge. They only need to pay minimal costs for the GAS fees of the declaration transaction. We are still working on the pricing model of the app.

You mentioned tokens, though?

Transactions on public blockchain networks usually cost gas or transaction fees in the native currency of the network, depending on the network you want to use for your declarations.


No registration, no login ... Seriously?

Liccium is an application that can be used simply by sign-up/log-in via MetaMask. To declare ISCC codes, the Liccium app requires no registration or verification. This means that no user credentials, no personal user data, no email addresses or passwords are stored on Liccium servers. Awesome, isn’t it? Some user actions require social or institutional verification. 

Content Handling

What happens with my digital assets?

The MVP of the Liccium app is a cloud-based application. To generate the ISCC codes from the content, digital assets have to be temporarily uploaded to the service.

The upload is encrypted in transport via https. After generation of an ISCC, the digital asset will be permanently deleted from the servers. In general, for the basic service no content will be permanently stored on Liccium servers!

If you have terrabytes of assets and/or do not want to generate content codes via the service, you might be interested in using the Liccium VM. The Liccium VM will run on a server that is controlled by yourself, which means that the virtual machine can be installed in your local network or on the servers of your data centers. This allows you to manage your digital media assets on premise and to generate ISCC without the need to upload content to the service.

Feel free to reach out to install the Licium VM.


What is the ISCC?

The International Standard Content Code (ISCC) is a proposal for a new open and decentralized identifier for digital media assets from all media sectors and of all media types, like text, image, audio and video.

The open specification and open source development are maintained by the not-for-profit ISCC Foundation. This will ensure interoperability and transparency of decentralised digital content identification.

The main distinguishing feature of the ISCC – in comparison to existing content identifiers – is the fact that the ISCC is derived from the digital media assets itself. This means that an ISCC can be generated by anyone with access to the content, free of charge by using open-source software.

The ISCC has been accepted as ISO/CD 24138 International Standard Content Code (ISCC), as part of ISO/TC 46/SC 9:

Liccium B.V. (former Posth Werk B.V.) received funding from the European Union’s Horizon 2020 research and innovation programme grant agreements No. 957228 and No. 101093274.