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Revenues, Deferred Revenues and Segments - Schedule of Reconciles Segment Income (Loss) to Consolidated Income (Loss) Before Income Taxes (Details) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Schedule of Reconciles Segment Income (Loss) to Consolidated Income (Loss) Before Income Taxes [Line Items] |  |  |
Revenues | € 4,484 | € 1,193 | € 311
General and administrative expenses | 37,871 | 4,473 | 3,670
Impairment of non-financial assets | 81,999 |  |
Operating loss from continuing operations | (384,511) | (4,241) | (3,747)
Interest income (expense) | (229) | (8) | 47
Income (loss) before income taxes | (378,443) | (3,837) | (3,179)
Digital Assets Treasury [Member] |  |  |
Schedule of Reconciles Segment Income (Loss) to Consolidated Income (Loss) Before Income Taxes [Line Items] |  |  |
Revenues | 1,535 |  |
Share based compensation | 266,967 |  |
General and administrative expenses | 19,939 |  |
Impairment of non-financial assets | 66,052 |  |
Operating loss from continuing operations | (351,423) |  |
Interest income (expense) |  |  |
Other income (expense) | (938) |  |
Income (loss) before income taxes | (352,361) |  |
Legacy Sport Portfolio [Member] |  |  |
Schedule of Reconciles Segment Income (Loss) to Consolidated Income (Loss) Before Income Taxes [Line Items] |  |  |
Revenues | 2,949 | 1,193 | 311
Share based compensation | 2,158 | 961 | 388
General and administrative expenses | 17,932 | 4,473 | 3,670
Impairment of non-financial assets | 15,947 |  |
Operating loss from continuing operations | (33,088) | (4,241) | (3,747)
Interest income (expense) | (229) | (8) | 47
Other income (expense) | 7,235 | 412 | 521
Income (loss) before income taxes | (26,082) | (3,837) | (3,179)
Consolidated [Member] |  |  |
Schedule of Reconciles Segment Income (Loss) to Consolidated Income (Loss) Before Income Taxes [Line Items] |  |  |
Revenues | 4,484 | 1,193 | 311
Share based compensation | 269,125 | 961 | 388
General and administrative expenses | 37,871 | 4,473 | 3,670
Impairment of non-financial assets | 81,999 |  |
Operating loss from continuing operations | (384,511) | (4,241) | (3,747)
Interest income (expense) | (229) | (8) | 47
Other income (expense) | 6,297 | 412 | 521
Income (loss) before income taxes | € (378,443) | € (3,837) | € (3,179)

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