v3.25.4

Digital Currencies and Derivative Asset - Schedule of measurement inputs and valuation techniques (Details) | Dec. 31, 2025 Number_of_coins Year | Aug. 09, 2025 Year | Jul. 18, 2025 Year | May 26, 2025 Year | May 21, 2025 Year | Apr. 03, 2025 Year | Mar. 31, 2025 Number_of_coins Year | Mar. 07, 2025 Year
--- | --- | --- | --- | --- | --- | --- | --- | ---
Spot price [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 88 | 117 | 118 | 109 | 110 | 83 | 83 | 87
Strike price [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input |  | 117 | 120 | 110 | 105 | 87 | 88 | 88
Strike price [Member] | Minimum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 87 |  |  |  |  |  |  |
Strike price [Member] | Maximum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 120 |  |  |  |  |  |  |
Risk-free interest rate [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input |  | 3.95 | 4.09 | 3.98 | 3.98 |  |  |
Risk-free interest rate [Member] | Minimum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 3.6 |  |  |  |  | 3.98 | 4.21 | 4.25
Risk-free interest rate [Member] | Maximum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 3.62 |  |  |  |  | 4.3 | 4.29 | 4.29
Expected life (years) [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input |  | 0.76 | 0.76 | 0.77 | 0.77 |  |  |
Expected life (years) [Member] | Minimum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 0.14 |  |  |  |  | 0.26 | 0.18 | 0.25
Expected life (years) [Member] | Maximum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 0.36 |  |  |  |  | 0.8 | 0.43 | 0.5
Annualized volatility [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input |  | 44.08 | 44.27 | 50.87 | 50.41 |  |  |
Annualized volatility [Member] | Minimum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 41.26 |  |  |  |  | 50.26 | 49.95 | 54.15
Annualized volatility [Member] | Maximum [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | 43.6 |  |  |  |  | 51.94 | 52.18 | 56.59
Number of Bitcoin [Member] | Digital currencies option [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input |  | 201 | 312 | 45 | 199 | 1,321 |  | 172
Number of Bitcoin pledged [Member] |  |  |  |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |  |  |  |
Measurement input | Number_of_coins | 1,619 |  |  |  |  |  | 172 |

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