Roland Ringgenberg (ringgi)

Suhr, AG, CH

Build with Gemini XPRIZE

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$2,000,000 in prizes. Build with Gemini. Ship products that impact the world.

$2,000,000 in prizes
Winners announced
26406 participants

Hedera22: Hello Smart Contracts

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Build the next game-changing decentralized application with scalable Solidity Smart Contracts on Hedera.

$864,000 in prizes
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2472 participants

Hedera21 - Hello Tokenization

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The future will be tokenized. Come and build a fast, fair, and secure application that takes advantage of Hedera’s new Token Service (HTS).

$137,500 in prizes
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600 participants