Verify that a published Filecoin market deal reached a sector
A deal ID confirms publication but a customer may need evidence of activation. Lotus returns the proposal and its onchain deal state together.
Match the proposal to the order
Replace 5432 with the market deal ID from the verified publish result. Match Provider, Client, PieceCID and PieceSize against the order instead of relying on a human-readable label.
{"jsonrpc":"2.0","id":1,"method":"Filecoin.StateMarketStorageDeal","params":[5432,[]]}
Check the activation epoch
Read State.SectorStartEpoch and State.SlashEpoch alongside Proposal.StartEpoch and EndEpoch. A proposal start is a contractual boundary. A populated sector start is evidence of activation, with negative sentinel epochs representing missing events where applicable. Onchain activation does not test whether a retrieval endpoint can return the file today.