Mechanism
A marker track is a sequence of marker records emitted by a moving unit as it traverses a route. Each marker record bears a timestamp, a position, an authority identifier indicating the governing authority for the segment in which the marker was emitted, and a cryptographic attestation bound to that authority's credential. Within a single authority's domain, consecutive markers form a contiguous segment whose authority credential is verified against the governance chain.
A cross-authority transition occurs when the unit physically or logically crosses from a region governed by one authority to a region governed by another, at a credentialed authority-boundary marker. At the transition, the substrate records a matched-pair handoff settlement rather than a plain marker. The settlement records the handoff as a lineage-linked pair, retaining the last marker of the outgoing segment, the first marker of the incoming segment, the timestamp of crossing, the identifier of the relinquishing-domain authority, the identifier of the receiving-domain authority, and a receiving-authority acknowledgment observation attesting that the operation was received under the receiving authority's governance. Each segment's authority credential is verified against the governance chain.
The handoff settlement is itself a member of the marker track sequence, occupying the position between the outgoing segment and the incoming segment. The track is therefore a single continuous record across any number of authority transitions, and the lineage reconstruction procedure walks the record from start to end, verifying each segment under its governing authority's credential and confirming each handoff against the lineage-linked pair recorded by the handoff-lineage recorder. A graduated handoff-confidence governor modulates receiving-authority acceptance by cross-authority evidential weight, so that handoff completion is graded rather than binary.
Operating Parameters
Cross-authority operation is parameterized by the authority credential of each participating authority and by the governance policy applied to manifest construction and to handoff acceptance. Each segment is credentialed by its governing authority, and a per-segment authority evaluator verifies each segment's authority credential against the unit's operator class and authority credentials before the segment is admitted to the route manifest.
A handoff-eligibility evaluator produces a handoff-eligibility observation indicating operation suitability for handoff, and a handoff-acceptance interface produces the receiving-authority acknowledgment observation. Authority credentials are subject to a credential lifecycle governing issuance, rotation, update, and revocation, with the credential rotation interval governance-policy-defined per deployment; the rotation event, the prior credential, and the renewed credential are recorded in the lineage field so that verification proceeds against the credential in force during each segment. A lineage-continuity preserver ensures complete provenance remains accessible across the handoff.
The substrate also exposes per-segment governed parameters that bound the operating envelope under which the unit is permitted to act while in an authority's domain. On each segment, the unit operates within the segment's governed speed envelope, lane assignment, and regulatory overlay, and the envelope may differ between authorities, so the unit's operation adjusts at each handoff to remain within the governed parameters of the incoming segment. These adjustments are reconstructible from the lineage, so that the operating envelope in force during any segment is recoverable from the route record.
Alternative Embodiments
In one embodiment, successive route segments are credentialed by different authorities with transitions at credentialed authority-boundary markers, in a sequential-authority composition. In an alternative embodiment, federated-authority composition applies, wherein authority-mapping rules translate credentials across authority taxonomies so that segments credentialed under different authority taxonomies are composed into a single route, with a cross-authority taxonomy translator reconciling authority context, observation schemas, and applicable policies across taxonomies.
In a further embodiment, joint-authority composition applies, wherein route segments are jointly credentialed by two or more authorities with governance-policy-defined contribution rights. A single transition may cross from one authority into a region jointly governed by two or more authorities, and the segment is admitted subject to the contribution rights defined by governance policy for the joint segment.
In yet another embodiment, escalated-authority composition applies, wherein a higher authority overrides sub-authority credentials for specified route types, such as emergency response and regulatory inspection. The route record reflects the overriding authority's credential for the specified segments, and the override is recorded in the route lineage.
A further embodiment applies delegated-authority composition, in which one authority delegates route-credentialing to another for specified segments. The route record carries the delegated credential for those segments, and verification proceeds under the credential of the authority to which credentialing was delegated.
Composition
The cross-authority route mechanism composes with the broader marker-track architecture along three axes. First, it composes with the lineage substrate: handoff settlements are first-class members of the marker sequence and participate in lineage reconstruction on equal footing with ordinary markers. Second, it composes with the segment-governed envelope: per-segment governed parameters are bound to the authority identifiers that appear in the route record, and the unit operates within each segment's governed speed envelope, lane assignment, and regulatory overlay. Third, it composes with the governance chain: attestations and acknowledgments are verified through the same governance chain used for any other authority-credentialed observation in the system, so that downstream verifiers do not require cross-authority-specific tooling beyond the standard governance-chain verification.
The composition is uniform across authority types. A municipal authority, a state authority, a federal authority, and an international authority all participate through the same handoff settlement structure, the same cryptographic attestation format, and the same governance chain. The differentiation among authority types is captured in the authority identifier and the authority credential.
The mechanism further composes with downstream consumers that consume the route manifest in a governance-chain-preserving manner, with each consumption event recorded in lineage to support post-hoc audit of route authorization decisions. A logistics consumer auditing a route, an insurance consumer reconstructing a sequence of governed envelopes for claim adjudication, and a regulatory consumer verifying compliance against an authority-specific rule set all proceed from the same route record using the same verification primitives. Consumer-side variation is captured in the consumer's application of the composite admissibility evaluator, which determines which authority credentials the consumer is willing to recognize. The admissibility evaluation is applied at the consumer's verification layer and does not affect the route record itself, so that a single route record may be served to multiple consumers whose admissibility evaluations differ.
Prior-Art Distinction
Prior architectures do not support cross-authority route composition spanning multiple jurisdictional authorities within a single continuous record. Prior handoff mechanisms transfer coordinated operations across authority-domain boundaries through implicit ownership transfer with per-domain isolation rather than governance-credentialed authority transfer with lineage continuity preserved across the boundary. Prior approaches assume authority equivalence rather than translating credentials across authority taxonomies, treat handoff completion as binary rather than graded, and record at most an ephemeral handoff acknowledgment rather than a matched-pair settlement producing a lineage-recorded transfer artifact.
The disclosed mechanism distinguishes over these by producing a single continuous route record that crosses authority boundaries inline, by recording each crossing as a matched-pair handoff settlement with a receiving-authority acknowledgment observation verified against the governance chain, by preserving lineage continuity and segment-governed operating envelopes across the boundary, and by supporting downstream governance-chain-preserving reconstruction of cross-authority lineage from the record.
Implementation Considerations
Practical implementation of the cross-authority mechanism benefits from a clean separation between the route-manifest constructor, the handoff settlement layer, and the verification layer. The route-manifest constructor receives a governance-credentialed route request with origin, destination, and operational constraints, retrieves applicable track topology from the shared view, evaluates each segment's authority credential, and composes segments across multiple authorities subject to governance-policy-defined cross-authority compatibility. The handoff settlement layer produces a handoff-eligibility observation, obtains the receiving-authority acknowledgment observation through the handoff-acceptance interface, and records the handoff as a lineage-linked pair. The verification layer replays the route record and verifies each segment and each handoff against the governance chain.
Boundary detection is anchored in credentialed authority-boundary markers at which authority transitions occur. A unit preparing a route queries the shared environmental world view for topology along its planned origin-to-destination path through the discovery primitive, receives the governance-credentialed topology segments from the governing authorities, and constructs an authorized-route manifest prior to departure. During operation, the unit's primary navigation reference is the governance-credentialed sequence of marker reads, validating each marker's authority credential through the governance chain and updating its route-progress state against the pre-departure authorized-route manifest.
Marker reads are subject to a marker-read admissibility evaluator that rejects spoofed, injected, malicious, or otherwise inadmissible marker reads, verifying each marker's cryptographic integrity attestation, its authority credential against the governance chain, its sequence consistency against the preceding marker's next-expected-marker specification, and its position and temporal consistency against mesh-derived position and time. Each rejection event, the applied evaluator, and the supporting evidence are recorded by a marker-rejection-lineage recorder. Where marker coverage is denied or impaired, the unit enters governed fallback, applying multi-source conflict resolution and the graduated response of the broader architecture to select an admissible response rather than treating coverage loss as a binary failure.
Disclosure Scope
This aspect is disclosed in U.S. Provisional Application No. 64/049,409. The disclosure encompasses any marker-track substrate in which a single continuous route record may cross any number of authority boundaries, in which each crossing is captured as a matched-pair handoff settlement recording the handoff as a lineage-linked pair with a receiving-authority acknowledgment observation, and in which downstream observers may reconstruct the cross-authority lineage of the route from the record. The disclosure further encompasses sequential-authority, joint-authority, delegated-authority, federated-authority, and escalated-authority composition as enumerated in the alternative embodiments. The illustrative authority types, municipal, state, federal, international, coalition, are non-limiting; substrates supporting additional authority types fall within scope provided the handoff settlement structure, per-segment credential verification, and lineage reconstruction procedure are present.
