Investigators traced Griffith through a unique set of bedsheets visible in the videos, despite the faces of victims being cropped out.

Initially facing more than 1,000 charges related to 91 young girls, many of these charges were later dropped.

The judge's associate took over two hours to read all the charges against him, highlighting the severity of his crimes.

Defence barrister Sarah Cartledge requested a delay in sentencing until after the reports were provided.

Ashley Paul Griffith, a former childcare worker, has pleaded guilty to over 300 child sex offences, including 28 counts of rape and 190 counts of indecent treatment of children under 12.

Griffith, 46, confessed to committing 307 offences at childcare centres in Brisbane and Italy between 2003 and 2022, as revealed in a Queensland court.

He was arrested by Australian federal police in August 2022 after investigators discovered thousands of abusive photographs and videos uploaded to the dark web.

Griffith remains in custody and is awaiting sentencing, which has been adjourned to a later date.

During the court hearing, Griffith acknowledged each charge in front of victims' families, some of whom were visibly distressed.

Crown prosecutor Stephanie Gallagher indicated that a pre-sentence report and psychiatric evaluation would be available by November.

Judge Anthony Rafter adjourned the matter to September 9 to determine a sentencing date.

His charges also include 67 counts of making child exploitation material, four counts of producing such material, and one count of distributing it internationally.