Reilly EternaMark (REM) Protocol - Dual-Layer Digital Permanence Using DOI Archiving and Blockchain Timestamping

The Reilly EternaMark (REM) Protocol defines a dual-layer method for digital permanence through the integration of Digital Object Identifiers (DOIs) and blockchain timestamping. The protocol ensures digital artifacts are permanently identifiable, immutable, and verifiable for both present and future use. This revision (-01) extends the -00 specification with a formal REM Record structure, a machine-readable artifact manifest format, a verification procedure, implementation guidance, and expanded security and interoperability considerations. It also corrects an erroneous normative reference present in -00.