
The recent Open Data Hack hosted by Encode Club served as a crucible for innovative solutions addressing pivotal challenges within the decentralized landscape. Among the groundbreaking projects unveiled was the Tableland Attestation Service (TAS), led by Nick Lionis. TAS has been introduced to significantly bolster trust and verification within the Filecoin network.
TAS emerges as a structured attestation service, elegantly anchored on the robust infrastructure of Tableland. Its objective is to instill a framework of trust by adeptly indexing user attestations through Tableland, thus paving the way for seamless interactions across various EVM chains. By catering to the pressing need for a reliable attestation service within the Filecoin network, TAS aspires to establish a new benchmark for trust-enhanced protocols in the blockchain realm.
The discussion below with Nick delves into the core objectives, development, and broader vision of TAS. Through his insights, we explore the potential of TAS as a cornerstone for trust-enhanced applications within the Filecoin network and beyond, reflecting the ethos of innovation that the Open Data Hack event sought to inspire.
Where are you from?
I am Nick Lionis from Greece, specifically from Athens, where my journey into the fascinating world of web3 and decentralized technologies began three years ago.
How did you get interested in crypto?
My interest in crypto stemmed from a desire to explore decentralization and its potential to reshape existing systems. This curiosity drove me to delve deeper into various protocols.
What got you interested in Tableland?
My fascination with Tableland began when I started researching protocols related to IPFS and Filecoin for my thesis. Discovering Textile, the creators of Tableland, and diving into their first YouTube video on their stack ignited my interest in Tableland’s protocol.
What pain point are you trying to solve with your hack?
TAS addresses a significant pain point by introducing a robust attestation service on the Filecoin network. Tableland, the main protocol leveraged by TAS, facilitates efficient indexing of user attestations using SQL. This enables complex queries and easy expansion to all EVM chains supported by Tableland, making querying user attestations across various chains seamless and efficient.
What is your solution?
My solution addresses the need for a robust attestation service within the Filecoin network. The Tableland Attestation Service (TAS) acts as this solution, providing a structured and efficient way to handle attestations, index user data, and allow seamless expansion across various EVM chains. TAS utilizes the power of Tableland protocol to ensure data organization and accessibility, contributing to a more trustable and efficient Filecoin ecosystem.
Why do you think users might be interested in your project?
TAS significantly enriches the Filecoin ecosystem by serving as a foundational protocol for other applications within the network. It brings immense value by addressing challenges related to Storage providers and Filecoin Actors' reputation. Additionally, it enables verifiable credentials and opens doors to a multitude of exciting use cases.
What are you planning to work on next?
My immediate plans involve developing an SDK to empower others to build on top of TAS. Simultaneously, I aim to create comprehensive documentation to facilitate an easier understanding and adoption of TAS by developers and enthusiasts.
Get started with TAS at their website, connect with them on GitHub and X, and say hey to the founder Nick on X or in Discord.

The recent Open Data Hack hosted by Encode Club served as a crucible for innovative solutions addressing pivotal challenges within the decentralized landscape. Among the groundbreaking projects unveiled was the Tableland Attestation Service (TAS), led by Nick Lionis. TAS has been introduced to significantly bolster trust and verification within the Filecoin network.
TAS emerges as a structured attestation service, elegantly anchored on the robust infrastructure of Tableland. Its objective is to instill a framework of trust by adeptly indexing user attestations through Tableland, thus paving the way for seamless interactions across various EVM chains. By catering to the pressing need for a reliable attestation service within the Filecoin network, TAS aspires to establish a new benchmark for trust-enhanced protocols in the blockchain realm.
The discussion below with Nick delves into the core objectives, development, and broader vision of TAS. Through his insights, we explore the potential of TAS as a cornerstone for trust-enhanced applications within the Filecoin network and beyond, reflecting the ethos of innovation that the Open Data Hack event sought to inspire.
Where are you from?
I am Nick Lionis from Greece, specifically from Athens, where my journey into the fascinating world of web3 and decentralized technologies began three years ago.
How did you get interested in crypto?
My interest in crypto stemmed from a desire to explore decentralization and its potential to reshape existing systems. This curiosity drove me to delve deeper into various protocols.
What got you interested in Tableland?
My fascination with Tableland began when I started researching protocols related to IPFS and Filecoin for my thesis. Discovering Textile, the creators of Tableland, and diving into their first YouTube video on their stack ignited my interest in Tableland’s protocol.
What pain point are you trying to solve with your hack?
TAS addresses a significant pain point by introducing a robust attestation service on the Filecoin network. Tableland, the main protocol leveraged by TAS, facilitates efficient indexing of user attestations using SQL. This enables complex queries and easy expansion to all EVM chains supported by Tableland, making querying user attestations across various chains seamless and efficient.
What is your solution?
My solution addresses the need for a robust attestation service within the Filecoin network. The Tableland Attestation Service (TAS) acts as this solution, providing a structured and efficient way to handle attestations, index user data, and allow seamless expansion across various EVM chains. TAS utilizes the power of Tableland protocol to ensure data organization and accessibility, contributing to a more trustable and efficient Filecoin ecosystem.
Why do you think users might be interested in your project?
TAS significantly enriches the Filecoin ecosystem by serving as a foundational protocol for other applications within the network. It brings immense value by addressing challenges related to Storage providers and Filecoin Actors' reputation. Additionally, it enables verifiable credentials and opens doors to a multitude of exciting use cases.
What are you planning to work on next?
My immediate plans involve developing an SDK to empower others to build on top of TAS. Simultaneously, I aim to create comprehensive documentation to facilitate an easier understanding and adoption of TAS by developers and enthusiasts.
Get started with TAS at their website, connect with them on GitHub and X, and say hey to the founder Nick on X or in Discord.

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We started this blog and our Weeknotes newsletter on Substack to give the community insight into the latest happenings with Tableland. Since then, we began research and experiments around web3-native data needs—which led to the MVP for Basin. Our blogs started to incorporate topics outside of the core Tableland database, but everything we’ve shared has been built by the team behind the protocol—Textile. ICYMI—Mirror and Paragraph are joining forces (see here), so moving from Mirror to Paragra...

Discord Roles from Chain-driven Application Data
What Is It?The Tableland team is excited to introduce our new Discord<>Tableland bot integration—linking on/off-chain retribution back to Discord roles! Namely, developers can create/deploy this bot as an extension to Vulcan using its native features. It allows the bot to read data from an application’s Tableland tables and use it in Discord user/role management—all with a decentralized cloud database!Why Did We Do It?Vulcan is great for checking Discord member NFT ownership and creating role...
Tableland is a permissionless database that allows developers to use relational data and SQL from any contract, wallet, or app.
Tableland is a permissionless database that allows developers to use relational data and SQL from any contract, wallet, or app.

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