Non-bypassable age-token gating across integration surfaces with verifiable age-compliance receipts

A system comprising one or more processors and memory storing instructions that, when executed, cause the system to implement an Age-Token Compliance Rail configured to:

• (a) obtain and validate an Age Token (A-TOKEN) associated with a device or user profile, the A-TOKEN attesting to at least an age tier and being verifiable under at least one of:
• (i) cryptographic verification, or (ii) platform-authenticated integrity verification;
• (b) construct an age-compliance context envelope for a candidate age-relevant episode associated with a requested action, the age-compliance context envelope comprising at least a subset of:
• (i) one or more descriptors of the A-TOKEN, including the age tier and an age-assurance confidence indicator;
• (ii) jurisdiction information associated with the device or the user profile;
• and (iii) a target description comprising at least a service type and a content or category label;
• (c) evaluate a multi-jurisdiction age-policy graph using the age-compliance context envelope to determine a permit outcome for the episode, the permit outcome having a permit-outcome value selected from:
• PERMIT, PERMIT_WITH_GUARDRAILS, REQUIRE_PARENT, or DENY;
• (d) gate execution of the requested action at one or more integration surfaces associated with performance of the requested action based on the permit outcome, comprising:
• (i) when the permit outcome is DENY, preventing the requested action from proceeding;
• (ii) when the permit outcome is REQUIRE_PARENT, preventing the requested action from proceeding unless and until successful completion of a parent or guardian workflow;
• and (iii) when the permit outcome is PERMIT or PERMIT_WITH_GUARDRAILS, allowing the requested action to proceed and, optionally, enforcing one or more guardrails associated with the permit outcome;
• (e) generate a structured Age-Compliance Receipt for the episode, the Age-Compliance Receipt comprising data representing at least:
• (i) the age-compliance context envelope;
• (ii) an identifier of the age-policy graph or a snapshot thereof;
• and (iii) the permit outcome;
• and
• (f) store or anchor at least a portion of the Age-Compliance Receipt or a digest thereof in an Age-Compliance Ledger comprising a tamper-evident evidence store under a freshness policy, wherein the Age-Compliance Receipt is later verifiable as evidence of age-policy conformance for the episode.