Identifying copyrighted material using embedded copyright information

A non-transitory, computer-readable storage medium storing one or more instructions executable by a computer system to perform operations for embedding copyright information in textual content, the operations comprising:

• identifying, by one or more computing devices, a first blockchain transaction ID associated with a first transaction that recorded textual content in a blockchain;
• identifying, by the one or more computing devices, a second transaction in the blockchain that is associated with the first blockchain transaction ID, wherein the second transaction identifies a copyright holder that holds a copyright of the textual content;
• generating, by the one or more computing devices, a unique identifier (ID) based on copyright information associated with the textual content, wherein the unique ID is generated based on encoding the second transaction;
• identifying, by the one or more computing devices, one or more attributes associated with fonts used in the textual content;
• and
• embedding, by the one or more computing devices, the unique ID in the textual content by embedding the unique ID in at least one bit of a plurality of bits to change at least one of the one or more attributes associated with the fonts to be representative of the unique ID, wherein the plurality of bits are used to encode the fonts based on variable width character encoding, wherein the unique ID is used to obtain the second transaction and identify the copyright holder based on the obtained second transaction.

A computer-implemented system, comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations for embedding copyright information in textual content, the operations comprising:
• identifying, by one or more computing devices, a first blockchain transaction ID associated with a first transaction that recorded textual content in a blockchain;
• identifying, by the one or more computing devices, a second transaction in the blockchain that is associated with the first blockchain transaction ID, wherein the second transaction identifies a copyright holder that holds a copyright of the textual content;
• generating, by the one or more computing devices, a unique identifier (ID) based on copyright information associated with the textual content, wherein the unique ID is generated based on encoding the second transaction;
• identifying, by the one or more computing devices, one or more attributes associated with fonts used in the textual content;
• and
• embedding, by the one or more computing devices, the unique ID in the textual content by embedding the unique ID in at least one bit of a plurality of bits to change at least one of the one or more attributes associated with the fonts to be representative of the unique ID, wherein the plurality of bits are used to encode the fonts based on variable width character encoding, wherein the unique ID is used to obtain the second transaction and identify the copyright holder based on the obtained second transaction.