Abstract: A method for recording a custodial chain and identifying anomalies in the chain; said method comprising defining or identifying a first element and assigning a first element identifier to it; associating the first element identifier physically with the first element; defining or identifying at least a second element and assigning a second element identifier to it; associating the second element identifier physically with the second element; aggregating the at least first element and second element physically as an aggregated element and assigning an aggregated element identifier to it; defining an aggregated element record which includes the aggregated element identifier and the at least first element identifier and the at least second element identifier; recording the identifiers as records in a database.

Abstract: A method for recording a custodial chain and identifying anomalies in the chain; said method comprising defining or identifying a first element and assigning a first element identifier to it; associating the first element identifier physically with the first element; defining or identifying at least a second element and assigning a second element identifier to it; associating the second element identifier physically with the second element; aggregating the at least first element and second element physically as an aggregated element and assigning an aggregated element identifier to it; defining an aggregated element record which includes the aggregated element identifier and the at least first element identifier and the at least second element identifier; recording the identifiers as records in a database.