ISO Publishes the ISCC STandard

After eight years of dedicated development and intensive collaboration with the creative communities, ISO has published the ISCC as a global standard for content-derived, digital content identification under ISO 24138:24138:

The ISCC represents a shift of paradigm. The fact that an identifier with near-duplicate matching capabilities is generated directly from the media file, allowing to bind rights, metadata and attribution without the need for embedded metadata, watermarks, or file naming conventions, makes it uniquely versatile and incredibly efficient. – This ISO publication is not only a milestone for the ISCC, but also an important step forward for content creators and internet worldwide, ensuring integrity and trust in the digital content ecosystem.

Please share the the good news: ISO Publishes New Standard Enabling Content Transparency – ISO 24138:


It is now almost eight years since we started work on the International Standard Content Code (ISCC). In a few weeks, it will become a global ISO standard. The ISCC is a unique identifier for digital media content. It uses specialised algorithms to create a code that can identify, track, and manage digital content like documents, images, audio, and video. Unlike traditional identifiers, the ISCC can also detect whether different content is similar to each other, making it useful for managing copyrights and finding related digital materials.

Over the years, I have found that it can be quite difficult to explain the concept of content-based identifiers in general and ISCC in particular to an audience in the cultural and creative industries. So instead of trying to explain ISCC all over again, in this post I wanted to create a better understanding of why it is so difficult to understand the concept of content-based identifiers and ISCC.

EU Funding For Creator Credentials

Liccium B.V. has been selected to receive funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 101093274 for the Creator Credentials project via NGI/TrustChain

The Creator Credentials project will develop a user-centric digital identity management framework that is specifically designed to serve the unique needs of the cultural and creative industries.

This includes a software application that can be used by media organisations, membership organisations or other trust services to manage and issue verifiable credentials to creators and other rightsholders. Creator Credentials aims to establish a new role for public entities and organisations in digital media publishing as future trust services and increase the trustworthiness of declarations and claims to digital media content online.

Creator Credentials documentation:

Feel free to check out the application (work in progress!): 

(Be aware that the application is still in development. Not all things be fully functional, but you can certainly click through the application and get a better idea what you can do either as a creator or as a trust service (credentials issuer).)

DE:PICT Framework
DE:PICT Framework

Posth Werk B.V. becomes Liccium B.V. – Driving Innovation in Trust Technology

For over a decade, Posth Werk B.V., originally founded in Berlin (Germany) and relocated to Leiden (Netherlands) in 2017, has been a trusted partner in the media industries, offering consulting services, project management, and innovative product development to a wide range of stakeholders across Europe and beyond. Our key role in the invention and introduction of the International Standard Content Code (ISCC) in 2016, led by Sebastian Posth as co-initiator and project leader of ISO 24138, underscores our dedication to driving technological advancement in digital content identification.

This commitment to further developing the ISCC, promoting its adoption and realising its potential culminated in the strategic evolution and rebranding of Posth Werk B.V. to Liccium B.V. in February 2024. As a pioneer in trust technology, Liccium is at the forefront of using the ISCC as a ground-breaking identification system. Our flagship product, the Liccium Trust Engine (, uses state-of-the-art cryptographic technology to redefine trust and transparency in the digital world.

This page will remain a blog to discuss current developments and trends in the media industries and provide information about myself. Feel free to reach out and start the conversation!

Liccium TRUST Engine

The Liccium Trust Engine empowers authors and rights holders to digitally sign and publicly declare copyrights and metadata, establishing a persistent link between claims and content without reliance on watermarks or embedded metadata. Verifiable declarations of original content create trust in claims, attribution and content  authenticity.

ISCC - International Standard Content Code

Liccium is based on the International Standard Content Code and is one of the first applications of its kind. The ISCC is a new and revolutionary open identification system and upcoming global ISO standard (ISO 24138) that enables decentralised digital content identification. With the ISCC codes, any user or entity with access to digital media content such as images, videos, audio or text files, can derive the identifier from the digital media assets.

ISCC in the context of the Copyright Infrastructure

This is the recording of my presentation of the ISCC in the context of the World Intellectual Property Organization – WIPO Webinars on the the Copyright Infrastructure.

DE:PICT Framework

The Digital Sovereign in the Age of Cryptography

Protocols and technologies such as blockchain, cryptographic hashing and public key cryptography make it possible to digitally sign and thereby appropriate certain rights and identities. The digital signature is the act of digital sovereignty, a new authority and control over a persistent and indissoluble bond that is able to link identities and self-descriptions, works and metadata.

DE:PICT Framework


Occasionally, I blog about digital media and publishing in the 21st century, the time of digital transition. The posts on this blog are intended to accompany digital change in the media industry, providing background knowledge and specialist information as well as analyses of digital topics.

Bitcoin Whitepaper – Onepager A2 Poster

On 31 October 2008, a link to a paper authored by Satoshi Nakamoto titled 'Bitcoin: A Peer-to-Peer Electronic Cash System' was posted to a cryptography mailing list. This publication triggered a revolution in banking and the financial industries. The dynamics of...

read more

The Open Content Certification Protocol (OCCP)

The Open Content Certification Protocol (OCCP) suggests a process to create and verify content certificates by using open, content-derived, decentralised content identifier technology on public blockchain networks.

read more