Sector Sealing State stable Theory Audit wip Edit this section section-systems.filecoin_mining.sector.sealing Before a Sector can be used, the Miner must seal the Sector: encode the data in the Sector to prepare it for the proving process. Unsealed Sector: A Sector of raw data. UnsealedCID (CommD): The root hash of the Unsealed Sector’s merkle tree.