docker-compose), each isolated database runs within a single PostgreSQL container.ttl for the specific message type which will be published to subscribers of the subject; if no positive acknowledgement has been received for a redelivered message when its ttl expires, the message will be negatively acknowledged and dead-lettered.bearer API token to authorize most API calls. A bearer API token is an encoded JWT which contains a subject claim (sub) which references the authorized entity (i.e., a User, Application or Organization). The encoded JWT token will, in most cases, include an expiration (exp) after which the token is no longer valid. Tokens issued without an expiration date (i.e., certain machine-to-machine API tokens) can be explicitly revoked. The standard and application-specific JWT claims are signed using the RS256 algorithm. The authorized entity may use the signed bearer Token to access one or more resources for which the Token was authorized. Unless otherwise noted, all API endpoints require the presence of a bearer Authorization header.IRegistry and IVault interfaces).BLINE protocol messages represent verifiable, valid state transitions (i.e., as governed by the business process and privacy protocol) prior to updating baselined records within a system of record such as SAP or Microsoft Dynamics.@baseline-protocol/messaging package. In such a case, the entire protocol as demonstrated within this reference implementation would be far from complete, but protocol messages could be sent and delivered.