The Z7 blockchain model
A deliberately narrow trust and coordination layer for number claims, wallet assignment, authorized transitions, integrity references and traceable history.
Purpose
The proposed Z7 blockchain is a shared trust and coordination layer. Its role is deliberately narrow: anchor number uniqueness, network-recognized control, authorized state transitions, integrity references and traceable history.
Candidate and claim
A number shown by a portal is only a candidate. It becomes occupied only when a valid claim is confirmed and the canonical state assigns it to a Z7 Wallet. Availability must therefore be revalidated at claim time.
Minimal state
A viable canonical record may contain the number, status, current authority, scoped delegation, protocol and state version, recovery-policy reference and the integrity reference of the active identity manifest. Extra fields belong on-chain only when every compatible implementation needs them for secure resolution.
Canonical number
Claim, wallet assignment, status and state version.
Control
Owner, controllers, delegation and recovery.
Manifest reference
Versioned hash or content-addressed reference.
Transitions
Transfer, suspension, recovery and revocation.
Data placement
Names, descriptions, images, documents, messages, search indexes, prices, analytics and most application data normally remain distributed. The chain anchors the relation and integrity reference, not every piece of content.
Provenance
Interfaces must distinguish network-authoritative state, owner-authorized content, third-party attestations and resource-local information. These classes are not equally authoritative and must not be merged visually or technically.
Canonical state
Validated by protocol rules.
Manifest content
Published under derived permissions.
External evidence
Scoped to issuer and revocation state.
Local data
Search, prices, analytics and services.
Concept boundary
The whitepaper defines a target architecture, not a production protocol. Namespace rules, consensus, validators, fees, privacy, governance and launch details remain open until they are specified, implemented and tested.