Business	9 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]
Business	1. Business Our Corporate History On June 27, 2018 (the “Closing Date”), RocketFuel Blockchain Company (“RBC”) and B4MC Gold Mines, Inc., a Nevada Corporation (“B4MC” or the “Purchaser”), consummated the transactions contemplated by that certain Contribution Agreement (the “Contribution Agreement”) made and entered into as of June 27, 2018 by and among RBC, the Purchaser and Gert Funk, Joseph Page, PacificWave Partners Limited, PacificWave Partners UK Ltd. and Saxton Capital Ltd (collectively referred to herein as the “Sellers”, individually each a “Seller”). Pursuant to the Contribution Agreement the Sellers contributed, transferred, assigned and conveyed to B4MC all right, title and interest in and to one hundred percent (100%) of the issued and outstanding Common Stock of RBC for an aggregate of 17,001,312 shares of Common Stock, par value $0.001 per share, of B4MC (the “Purchaser Common Stock”), (such transaction, the “Business Combination”). As a result of the Business Combination, RBC became a 100% wholly owned subsidiary of B4MC. In September 2018, B4MC changed its name to RocketFuel Blockchain, Inc. Prior to the Business Combination, B4MC was a “shell company,” as such term is defined in Rule 12b-2 under the Exchange Act. As a result of the Business Combination, we have ceased to be a “shell company.” The Business Combination was treated as a “reverse acquisition” of RBC for financial accounting purposes. RBC was considered the acquirer for accounting purposes, and the historical financial statements of B4MC before the Business Combination were replaced with the historical financial statements of RBC before the Business Combination in all future filings with the SEC. The Purchaser Common Stock issued to the Sellers in connection with the Business Combination have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), in reliance upon the exemption from registration provided by Section 4(a)(2), which exempts transactions by an issuer not involving any public offering, Regulation D and/or Regulation S promulgated by the SEC under that section. These shares may not be offered or sold in the United States absent registration or an applicable exemption from registration. In this report, references to RocketFuel, the “Company,” “we” and similar terms are to B4MC following the consummation of the reverse acquisition. The foregoing description of the Contribution Agreement does not purport to be complete. For further information, please refer to the copy of the Contribution Agreement included as Exhibit 2.1 to the Current Report on Form 8-K which was filed with the SEC on June 29, 2018. There are representations and warranties contained in the Contribution Agreement that were made by the parties to each other as of the date of execution. The assertions embodied in these representations and warranties were made solely for purposes of the Contribution Agreement and may be subject to important qualifications and limitations agreed to by the parties in connection with negotiating their terms. Moreover, some representations and warranties may not be accurate or complete as of any specified date because they are subject to a contractual standard of materiality that is different from certain standards generally applicable to shareholders or were used for the purpose of allocating risk between the parties rather than establishing matters as facts. For these reasons, investors should not rely on the representations and warranties in the Contribution Agreement as statements of factual information. Business We (or the “Company”) provide cryptocurrency and other check-out and payment systems that securely automate and simplify the way online payment and shipping information is received by merchants from their customers. Our “one click” checkout solution is modeled on the “buy now” button on leading eCommerce sites. Our check-out systems are designed to enhance customers’ data protection, enabling consumers to pay for goods and services using cryptocurrencies or by direct transfers from their bank accounts without exposing spending credentials such as credit card data. At the same time, our check-out systems are designed to increase the speed, security and ease of use for both customers and merchants and include a merchant portal that provides detailed transactions and metrics about payments received by the merchant. Our system also includes a customer portal where shoppers are able to track their payments, configure payment defaults and connect with various cryptocurrency exchanges and banks to facilitate payment to merchants. Merchants are able to integrate a unique pop-up user interface that allows customers to pay directly from their eCommerce checkout page with no need to redirect to another website or web page. Our corporate headquarters are located in San Francisco, California.

Business

9 Months Ended

Dec. 31, 2021

1. Business

Our Corporate History

On June 27, 2018 (the “Closing Date”), RocketFuel Blockchain Company (“RBC”) and B4MC Gold Mines, Inc., a Nevada Corporation (“B4MC” or the “Purchaser”), consummated the transactions contemplated by that certain Contribution Agreement (the “Contribution Agreement”) made and entered into as of June 27, 2018 by and among RBC, the Purchaser and Gert Funk, Joseph Page, PacificWave Partners Limited, PacificWave Partners UK Ltd. and Saxton Capital Ltd (collectively referred to herein as the “Sellers”, individually each a “Seller”).

Pursuant to the Contribution Agreement the Sellers contributed, transferred, assigned and conveyed to B4MC all right, title and interest in and to one hundred percent (100%) of the issued and outstanding Common Stock of RBC for an aggregate of 17,001,312 shares of Common Stock, par value $0.001 per share, of B4MC (the “Purchaser Common Stock”), (such transaction, the “Business Combination”). As a result of the Business Combination, RBC became a 100% wholly owned subsidiary of B4MC. In September 2018, B4MC changed its name to RocketFuel Blockchain, Inc.

Prior to the Business Combination, B4MC was a “shell company,” as such term is defined in Rule 12b-2 under the Exchange Act. As a result of the Business Combination, we have ceased to be a “shell company.”

The Business Combination was treated as a “reverse acquisition” of RBC for financial accounting purposes. RBC was considered the acquirer for accounting purposes, and the historical financial statements of B4MC before the Business Combination were replaced with the historical financial statements of RBC before the Business Combination in all future filings with the SEC. The Purchaser Common Stock issued to the Sellers in connection with the Business Combination have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), in reliance upon the exemption from registration provided by Section 4(a)(2), which exempts transactions by an issuer not involving any public offering, Regulation D and/or Regulation S promulgated by the SEC under that section. These shares may not be offered or sold in the United States absent registration or an applicable exemption from registration. In this report, references to RocketFuel, the “Company,” “we” and similar terms are to B4MC following the consummation of the reverse acquisition.

The foregoing description of the Contribution Agreement does not purport to be complete. For further information, please refer to the copy of the Contribution Agreement included as Exhibit 2.1 to the Current Report on Form 8-K which was filed with the SEC on June 29, 2018. There are representations and warranties contained in the Contribution Agreement that were made by the parties to each other as of the date of execution. The assertions embodied in these representations and warranties were made solely for purposes of the Contribution Agreement and may be subject to important qualifications and limitations agreed to by the parties in connection with negotiating their terms. Moreover, some representations and warranties may not be accurate or complete as of any specified date because they are subject to a contractual standard of materiality that is different from certain standards generally applicable to shareholders or were used for the purpose of allocating risk between the parties rather than establishing matters as facts. For these reasons, investors should not rely on the representations and warranties in the Contribution Agreement as statements of factual information.

Business

We (or the “Company”) provide cryptocurrency and other check-out and payment systems that securely automate and simplify the way online payment and shipping information is received by merchants from their customers. Our “one click” checkout solution is modeled on the “buy now” button on leading eCommerce sites. Our check-out systems are designed to enhance customers’ data protection, enabling consumers to pay for goods and services using cryptocurrencies or by direct transfers from their bank accounts without exposing spending credentials such as credit card data. At the same time, our check-out systems are designed to increase the speed, security and ease of use for both customers and merchants and include a merchant portal that provides detailed transactions and metrics about payments received by the merchant. Our system also includes a customer portal where shoppers are able to track their payments, configure payment defaults and connect with various cryptocurrency exchanges and banks to facilitate payment to merchants. Merchants are able to integrate a unique pop-up user interface that allows customers to pay directly from their eCommerce checkout page with no need to redirect to another website or web page.

Our corporate headquarters are located in San Francisco, California.