Soranoha TEI requires a main title in teiHeader/fileDesc/titleStmt. Soranoha TEI requires an Aozora work ID or source work identifier. Soranoha TEI requires a rights grant in teiHeader/fileDesc/publicationStmt/availability/licence with a non-empty @target (snh-publication-licence) teiHeader must declare at least one tei:profileDesc/tei:langUsage/tei:language with non-empty @ident (snh-header-language-declared) Soranoha TEI ruby requires both rb and rt components. Soranoha TEI ruby base must contain source text or a declared character. Soranoha TEI ruby reading must contain source text or a declared character. Soranoha TEI gaiji requires a declaration reference, source marker reference, or resolution status. Soranoha TEI gaiji local @ref must point to a charDecl/char declaration in this document. tei:charDecl/tei:char must declare at least one non-empty resolution form: tei:mapping, tei:unicodeProp/@value, tei:localProp/@value, or tei:desc (snh-char-resolution-form) Soranoha TEI figure carries no nonempty description or caption, so the image it names has no alternative text. Soranoha TEI source span references must point to local span identifiers. Soranoha TEI source span fragments must resolve to an existing @xml:id in this document. Soranoha TEI linguistic enrichment in the transcription layer must be declared in the header. TEI roots using Soranoha extension attributes must declare snh:vocab-version. snh:preservation-record must be a deterministic preservation sidecar record id such as r000042. snh:layout-params must use semicolon-delimited key=value pairs.