title: Authentication required

detail: synthetic private session diagnostic

message: Authentication required

forbidden_fragments: session diagnostic


title: Insufficient credits

detail: synthetic private ledger diagnostic

message: Insufficient credits

forbidden_fragments: ledger diagnostic


title: Upload rejected

detail: synthetic parser and storage diagnostic

message: Upload rejected

forbidden_fragments: parser storage diagnostic


title: Artifact expired

detail: synthetic private object diagnostic

message: Artifact expired

forbidden_fragments: object diagnostic

evidence: ownership checked before expiry projection


title: Owned miss and foreign resource are indistinguishable

detail: synthetic foreign owner diagnostic

message: Resource not found

forbidden_fragments: foreign owner diagnostic


title: Idempotency conflict

detail: synthetic request hash diagnostic

message: Idempotency conflict

forbidden_fragments: hash diagnostic


title: Terminal state conflict

detail: synthetic terminal arbitration diagnostic

message: State conflict

forbidden_fragments: arbitration diagnostic