package tezos-protocol-002-PsYLVpVv

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package tezos-protocol-002-PsYLVpVv
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type Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error +=
  1. | Invalid_fitness_gap of int64 * int64
type Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error +=
  1. | Timestamp_too_early of Alpha_context.Timestamp.t * Alpha_context.Timestamp.t
type Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error +=
  1. | Invalid_block_signature of Tezos_crypto.Block_hash.t * Tezos_crypto.Signature.public_key_hash
type Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error +=
  1. | Unexpected_endorsement
type Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error +=
  1. | Invalid_signature
type Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error +=
  1. | Invalid_stamp
val minimal_time : Alpha_context.context -> int -> Tezos_base.Time.Protocol.t -> (Tezos_base.Time.Protocol.t, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

minimal_time ctxt priority pred_block_time returns the minimal time, given the predecessor block timestamp pred_block_time, after which a baker with priority priority is allowed to bake. Fail with Invalid_time_between_blocks_constant if the minimal time cannot be computed.

val check_baking_rights : Alpha_context.context -> Alpha_context.Block_header.contents -> Tezos_base.Time.Protocol.t -> (Alpha_context.public_key, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

check_baking_rights ctxt block pred_timestamp verifies that: * the contract that owned the roll at cycle start has the block signer as delegate. * the timestamp is coherent with the announced slot.

val endorsement_rights : Alpha_context.context -> Alpha_context.Level.t -> ((Alpha_context.public_key * int list * bool) Tezos_protocol_environment_002_PsYLVpVv__Environment.Signature.Public_key_hash.Map.t, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

For a given level computes who has the right to include an endorsement in the next block. The result can be stored in Alpha_context.allowed_endorsements

val check_endorsement_rights : Alpha_context.context -> Tezos_crypto.Chain_id.t -> Alpha_context.Kind.endorsement Alpha_context.Operation.t -> (Alpha_context.public_key_hash * int list * bool, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

Check that the operation was signed by a delegate allowed to endorse at the level specified by the endorsement.

val endorsement_reward : Alpha_context.context -> block_priority:int -> int -> (Alpha_context.Tez.t, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

Returns the endorsement reward calculated w.r.t a given priority.

baking_priorities ctxt level is the lazy list of contract's public key hashes that are allowed to bake for level.

val first_baking_priorities : Alpha_context.context -> ?max_priority:int -> Alpha_context.public_key_hash -> Alpha_context.Level.t -> (int list, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

first_baking_priorities ctxt ?max_priority contract_hash level is a list of priorities of max ?max_priority elements, where the delegate of contract_hash is allowed to bake for level. If ?max_priority is None, a sensible number of priorities is returned.

val check_signature : Alpha_context.Block_header.t -> Tezos_crypto.Chain_id.t -> Alpha_context.public_key -> (unit, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

check_signature ctxt chain_id block id check if the block is signed with the given key, and belongs to the given chain_id

val check_header_proof_of_work_stamp : Alpha_context.Block_header.shell_header -> Alpha_context.Block_header.contents -> int64 -> bool

Checks if the header that would be built from the given components is valid for the given diffculty. The signature is not passed as it is does not impact the proof-of-work stamp. The stamp is checked on the hash of a block header whose signature has been zeroed-out.

val check_proof_of_work_stamp : Alpha_context.context -> Alpha_context.Block_header.t -> (unit, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

verify if the proof of work stamp is valid

val check_fitness_gap : Alpha_context.context -> Alpha_context.Block_header.t -> (unit, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t

check if the gap between the fitness of the current context and the given block is within the protocol parameters

val dawn_of_a_new_cycle : Alpha_context.context -> (Alpha_context.Cycle.t option, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t
val earlier_predecessor_timestamp : Alpha_context.context -> Alpha_context.Level.t -> (Alpha_context.Timestamp.t, Tezos_protocol_environment_002_PsYLVpVv__Environment.Error_monad.error list) result Lwt.t