The Core Principle
References
https://en.wikipedia.org/wiki/Blockchain
A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes.[1][2][3][4] Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree, where data nodes are represented by leaves). Since each block contains information about the previous block, they effectively form a chain (compare linked list data structure), with each additional block linking to the ones before it. Consequently, blockchain transactions are resistant to alteration because, once recorded, the data in any given block cannot be changed retroactively without altering all subsequent blocks and obtaining network consensus to accept these changes. This protects blockchains against nefarious activities such as creating assets "out of thin air", double-spending, counterfeiting, fraud, and theft.[5][6]
https://en.wikipedia.org/wiki/Theory_of_mind
In psychology and philosophy, theory of mind (often abbreviated to ToM) refers to the capacity to understand other people by ascribing mental states to them. A theory of mind includes the understanding that others' beliefs, desires, intentions, emotions, and thoughts may be different from one's own.[1] Possessing a functional theory of mind is crucial for success in everyday human social interactions.
https://en.wikipedia.org/wiki/Qualia
In philosophy of mind, qualia (/ˈkwɑːliə, ˈkweɪ-/; sg.: quale /-li/) are defined as instances of subjective, conscious experience. The term qualia derives from the Latin neuter plural form (qualia) of the Latin adjective quālis (Latin pronunciation: [ˈkʷaːlɪs]) meaning "of what sort" or "of what kind" in relation to a specific instance, such as "what it is like to taste a specific apple — this particular apple now".