v3.25.4
Fair Value Measurement (Tables)
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Fair Value Measurement [Abstract]    
Schedule of Financial Liabilities Measured at Fair Value on a Recurring Basis

The following table provides a summary of the changes in the fair value of the Company’s Level 3 related party loan payable for the three and nine months ended September 30, 2025 (in thousands):

 

   Loans
payable - related
party
 
Fair value as of January 1, 2025  $
—
 
Assumption of convertible note upon closing of the Business Combination   3,898 
Proceeds Received   11,000 
Repayments of debt   (610)
Loss on change in the fair value of related party convertible debt   71 
Fair value as of September 30, 2025  $14,359 

As of December 31, 2024 and 2023, the Company’s financial liabilities measured at fair value on a recurring basis, were as follows (in thousands):

 

   Fair value as of December 31, 2024 
   Level 1   Level 2   Level 3   Total 
Liabilities:                
Convertible Notes at fair value  $
—
   $
—
   $2,235   $2,235 
Total liabilities measured at fair value  $
—
   $
—
   $2,235   $2,235 

 

   Fair value as of December 31, 2023 
   Level 1   Level 2   Level 3   Total 
Liabilities:                
Convertible Notes at fair value  $
—
   $
—
   $1,714   $1,714 
Total assets measured at fair value  $
—
   $
—
   $1,714   $1,714 
Schedule of Fair Value of the Company’s Level 3 Financial Instruments  

The following table sets forth a summary of the changes in the fair value of the Company’s Level 3 financial instruments for the years ended December 31, 2024 and 2023 (in thousands):

 

   Tasly
convertible
debt at fair
value
 
Fair value as of January 1, 2023  $
—
 
Issuance of Convertible Notes   1,600 
Accrued stated interest   92 
Change in fair value included in other income and loss on change in the fair value of Tasly convertible debt   22 
Fair value as of December 31, 2023  $1,714 
      
Fair value as of January 1, 2024  $1,714 
Issuance of Convertible Notes   16 
Accrued stated interest   194 
Change in fair value included in other income and loss on change in the fair value of Tasly convertible debt   311 
Fair value as of December 31, 2024  $2,235 
Schedule of Company’s Financial Assets and Liabilities Measured at Fair Value

As of September 30, 2025 and December 31, 2024, the Company’s financial assets and liabilities measured at fair value on a recurring basis, were as follows (in thousands):

 

   As of September 30, 2025 
   Level 1   Level 2   Level 3   Total 
Assets:                
Digital assets (Bitcoin)  $972   $
—
   $
—
   $972 
Liabilities:                    
Related Party Convertible Notes at fair value  $
—
   $
—
   $4,127   $4,127 
Loans payable - related party   
—
    
—
    14,359    14,359 
Warrant liabilities - Private Placement Warrants   
—
    
—
    287    287 
Warrant liabilities - Representative’s Warrants   
—
    
—
    23    23 
Total liabilities measured at fair value  $
—
   $
—
   $18,797   $18,797 

 

   As of December 31, 2024     
   Level 1   Level 2   Level 3   Total 
Liabilities:                
Related Party Convertible Notes at fair value  $
—
   $
—
   $2,234   $2,234 
Total liabilities measured at fair value  $
—
   $
—
   $2,234   $2,234 
 
Schedule of Inputs into the Monte Carlo Simulation Model for the Warrant Liabilities The key inputs into the Monte Carlo simulation model for the warrant liabilities were as follows at September 30, 2025 and July 11, 2025
   September 30,
2025
   July 11,
2025
 
Input        
Risk-free interest rate   3.73%   3.99%
Expected term (years)   4.8    5.00 
Expected volatility   91.80%   42.00%
Exercise price  $11.50   $11.50 
Fair value of Common Stock  $0.30   $2.50 

The key inputs into the Monte Carlo simulation model for the Loan Payable - Related Party were as follows at September 30, 2025 and July 11, 2025:

 

   September 30,
2025
   July 11,
2025
 
Input        
Risk-free interest rate   3.66%   4.00%
Expected term (years)   1.28    1.50 
Expected volatility   72.6%   82.70%
Fair value of Common Stock  $0.30   $2.50 
 
Schedule of Financial Instruments that are Measured at Fair Value on a Recurring Basis

The following table provides a summary of the changes in the fair value of the Company’s Level 3 warrant liabilities that are measured at fair value on a recurring basis for the three and nine months ended September 30, 2025 (in thousands):

 

   Private
Placement
Warrants
   Representative’s
Warrants
   Total Level 3
Warrant
liabilities
 
Fair value at Beginning of period  $
 -
   $
-
   $
-
 
Assumption of warrant liabilities   1,107    87    1,194 
Change in fair value of warrant liabilities   (820)   (64)   (884)
Fair value at September 30, 2025  $287   $23   $311 
 
Schedule of Fair Value of the Company’s Level 3 Related Party Convertible Debt Payable

The following table provides a summary of the changes in the fair value of the Company’s Level 3 Related Party Convertible Debt Payable for the three and nine months ended September 30, 2025 and 2024 (in thousands):

 

   Related Party
Convertible Debt
Payable, at
Fair Value
 
Fair value as of January 1, 2025  $2,234 
Loss on change in the fair value of related party convertible debt   156 
Fair value as of March 31, 2025   2,390 
Loss on change in the fair value of related party convertible debt   153 
Fair value as of June 30, 2025   2,543 
Assumption of related party convertible note upon closing of the Business Combination   2,162 
Gain on change in the fair value of related party convertible debt   (578)
Fair value as of September 30, 2025  $4,127 

 

   Related Party
Convertible Debt
Payable, at
Fair Value
 
Fair value as of January 1, 2024  $1,714 
Issuance of Tasly Convertible Notes   16 
Loss on change in the fair value of related party convertible debt   44 
Fair value as of March 31, 2024   1,774 
Loss on change in the fair value of related party convertible debt   64 
Fair value as of June 30, 2024   1,838 
Loss on change in the fair value of related party convertible debt   320 
Fair value as of September 30, 2024  $2,158