The Time Treaty Chain (TTC) is a public blockchain that defines block identities and their mutual spatial relationships over time using compound treaties. Block Identity Token, abbreviated BIDT, is the prototype token issued and used within the spherical cross-chain ecosystem of the Time Treaty Chain. In the main chains ecosystem network, BIDT can coexist with other tokens or D-Coins, meaning the valid token within the ecosystem is not unique. An infinite number of anonymous, independent, and secure block identities serve as nodes; several grounded, innovative, and community-driven applications within the chain become super nodes; and mutual trust, security, and trading form the triple-root smart contracts that link the cross-chain ecosystem. Together, they compose a spherical ecosystem of the TTC block identities represented as P*P*P… = PN.