A method for storing data, including receiving a request to write a first datum defined using a first object ID and a first offset ID to persistent storage. The method further including determining a first physical address in the persistent storage, where the first physical address comprises a first block ID and first sub block ID. The method further includes writing the first datum to the first physical address, generating a first table of contents entry (TE) comprising the first object ID, the first offset ID, and the first sub block ID, and writing the first TE to a second physical address in the persistent storage, where the second physical address comprises the first block ID and a second sub block ID corresponding to the second sub block ID, and where the second sub block is located within a first block corresponding to the first block ID.