Granted Patent B2

US 12,406,237 · App. 17/831,395 · Granted Sep 2, 2025

Inventors: Craig Steven Wright (London, GB); Stephane Savanah (London, GB)

Assignee: NCHAIN LICENSING AG

G06Q20/0658G06F16/1834G06F16/27G06Q20/3829G06Q20/385H04L9/0643H04L9/0861H04L9/3234H04L9/3239H04L9/3247H04L9/50H04L2209/56

Abstract

Claims (63)

1. A computer-implemented tokenisation method implemented on a blockchain having a blockchain protocol, the computer-implemented tokenisation method comprising:

generating a blockchain transaction (Tx) having an output (TxO) related to a quantity of cryptocurrency (B1) and a locking script comprising:

metadata comprising information associated with a token (T1) that is transferrable through the blockchain transaction (Tx), wherein the token (T1) represents a tokenised entity, wherein the metadata includes randomly generated values and contract terms; and

at least one public cryptographic key;

receiving, over a communications network, a request from a user for the token (T1);

allocating the quantity of cryptocurrency (B1) for association with the token (T1), wherein the allocating comprises:

determining a pegging rate (PR1) for the token (T1) that defines a relationship between the quantity of cryptocurrency and a fiat currency value;

determining a token value (TV1) in the fiat currency; and

determining the quantity of cryptocurrency (B1) based on the pegging rate (PR1) and the token value (TV1), wherein the quantity of cryptocurrency (B1) has a market value in the fiat currency less than the token value (TV1); and

sending, over the communications network, a data output to a peer-to-peer distributed ledger comprising the blockchain transaction (Tx) including the output (TxO) and the locking script, wherein:

the pegging rate (PR1) fixes the token value to the fiat currency value; and

the contract terms in the metadata that specify the token (T1) is redeemable for the token value (V1) in the fiat currency.

2. The computer-implemented tokenisation method according to claim 1 , wherein the token (T1) is provided in a metadata field of the metadata in the blockchain transaction (Tx).

3. The computer-implemented tokenisation method according to claim 1 , further comprising:

storing the tokenised entity on or off the blockchain; and/or

providing an unlocking script that meets requirements of the locking script for the output (TxO) to transfer ownership of the quantity of cryptocurrency (B1) to a redeeming party or user.

4. The computer-implemented tokenisation method according to claim 1 , wherein the metadata further comprises a pointer to a file, control data, information relating to a contract, and/or information relating to how to process the blockchain transaction (Tx).

5. The computer-implemented tokenisation method according to claim 1 , wherein the metadata is:

hashed; and/or

provided in the locking script of the output (TxO) as a cryptographic key.

6. The computer-implemented tokenisation method according to claim 1 , wherein: the locking script comprises an operation that compares signatures with public keys; and/or

the blockchain transaction (Tx) is an N-of-M blockchain transaction.

7. The computer-implemented tokenisation method according to claim 1 , wherein the token (T1) relates to a contract and the blockchain transaction (Tx) and/or the metadata comprises parameters or data items indicating:

an amount of shares available under the contract;

a quantity of transfer units to be transferred from a sender to at least one recipient; and

a factor for calculating a value for the quantity of transfer units.

8. The computer-implemented tokenisation method according to claim 1 , wherein allocating the quantity of cryptocurrency (B1) for association with the token (T1) comprises:

determining a minimum threshold (MT1) of the quantity of cryptocurrency (B1) of the token (T1); and

determining the quantity of cryptocurrency (B1) that is at or above the minimum threshold (MT1).

9. The computer-implemented tokenisation method according to claim 1 , wherein the metadata is provided within the blockchain transaction (Tx) such that:

a blockchain protocol is agnostic to presence of the token (T1) and/or other metadata in the locking script;

the metadata is usable as another token; and

transfer of the token (T1) is performed via the blockchain without alteration of the blockchain protocol.

10. The computer-implemented tokenisation method according to claim 1 , further comprising:

sending or receiving, over a communications network, a request for the token (T1); or

embedding additional information in the metadata to associate a second token (T2) with the token (T1).

11. The computer-implemented tokenisation method according to claim 1 , wherein each of the at least one public cryptographic key forms a cryptographic pair with a corresponding private key, and wherein at least a portion of the cryptographic pair is stored in an electronic wallet or a data store.

12. A non-transitory computer-readable medium comprising executable instructions that, as a result of execution by one or more processors of a processing device, cause the processing device to implement a computer-implemented tokenisation method implemented on a blockchain having a blockchain protocol, the computer-implemented tokenisation method comprising:

generating a blockchain transaction (Tx) having an output (TxO) related to a quantity of cryptocurrency (B1) and a locking script comprising:

metadata comprising information associated with a token (T1) that is transferrable through the blockchain transaction (Tx), wherein the token (T1) represents a tokenised entity, wherein the metadata includes randomly generated values and contract terms; and

at least one public cryptographic key;

receiving, over a communications network, a request from a user for the token (T1);

allocating the quantity of cryptocurrency (B1) for association with the token (T1), wherein the allocating comprises:

determining a pegging rate (PR1) for the token (T1) that defines a relationship between the quantity of cryptocurrency and a fiat currency value;

determining a token value (TV1) in the fiat currency; and

determining the quantity of cryptocurrency (B1) based on the pegging rate (PR1) and the token value (TV1), wherein the quantity of cryptocurrency (B1) has a market value in the fiat currency less than the token value (TV1); and

sending, over the communications network, a data output to a peer-to-peer distributed ledger comprising the blockchain transaction (Tx) including the output (TxO) and the locking script, wherein:

the pegging rate (PR1) fixes the token value to the fiat currency value; and

the contract terms in the metadata that specify the token (T1) is redeemable for the token value (V1) in the fiat currency.

13. A device comprising:

one or more processors; and

memory storing executable instructions that, as a result of execution by the one or more processors, cause the device to perform a computer-implemented tokenisation method implemented on a blockchain having a blockchain protocol, the computer-implemented tokenisation method comprising:

generating a blockchain transaction (Tx) having an output (TxO) related to a quantity of cryptocurrency (B1) and a locking script comprising:

metadata comprising information associated with a token (T1), wherein the token (T1) represents a tokenised entity that is transferrable through the blockchain transaction, wherein the metadata includes randomly generated values and contract terms; and

at least one public cryptographic key;

receiving, over a communications network, a request from a user for the token (T1);

allocating the quantity of cryptocurrency (B1) for association with the token (T1), wherein the allocating comprises:

determining a pegging rate (PR1) for the token (T1) that defines a relationship between the quantity of cryptocurrency and a fiat currency value;

determining a token value (TV1) in the fiat currency; and

determining the quantity of cryptocurrency (B1) based on the pegging rate (PR1) and the token value (TV1), wherein the quantity of cryptocurrency (B1) has a market value in the fiat currency less than the token value (TV1); and

sending, over the communications network, a data output to a peer-to-peer distributed ledger comprising the blockchain transaction (Tx) including the output (TxO) and the locking script, wherein:

the pegging rate (PR1) fixes the token value to the fiat currency value; and

the contract terms in the metadata that specify the token (T1) is redeemable for the token value (V1) in the fiat currency.

Assignments (3)

Priority Claims (2)

Continuity (2)

References Cited (400)