Struct SegmentReceipt 

#[non_exhaustive]
pub struct SegmentReceipt {
    pub seal: Vec<u32>,
    pub index: u32,
    pub hashfn: String,
    pub verifier_parameters: Digest,
    pub claim: ReceiptClaim,
}

A receipt attesting to the execution of a Segment.

A SegmentReceipt attests that a Segment was executed in a manner consistent with the ReceiptClaim included in the receipt.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

seal: Vec<u32>

The cryptographic data attesting to the validity of the code execution.

This data is used by the ZKP Verifier (as called by SegmentReceipt::verify_integrity_with_context) to cryptographically prove that this Segment was faithfully executed. It is largely opaque cryptographic data, but contains a non-opaque claim component, which can be conveniently accessed with SegmentReceipt::claim.

index: u32

Segment index within the Receipt

hashfn: String

Name of the hash function used to create this receipt.

verifier_parameters: Digest

A digest of the verifier parameters that can be used to verify this receipt.

Acts as a fingerprint to identity differing proof system or circuit versions between a prover and a verifier. Is not intended to contain the full verifier parameters, which must be provided by a trusted source (e.g. packaged with the verifier code).

claim: ReceiptClaim

ReceiptClaim containing information about the execution that this receipt proves.

Implementations

impl SegmentReceipt

pub fn verify_integrity_with_context( &self, ctx: &VerifierContext, ) -> Result<(), VerificationError>

Verify the integrity of this receipt, ensuring the claim is attested to by the seal.

pub fn get_seal_bytes(&self) -> Vec<u8>

Return the seal for this receipt, as a vector of bytes.

pub fn seal_size(&self) -> usize

Number of bytes used by the seal for this receipt.

pub fn povw_nonce(&self) -> Result<PovwNonce>

Extracts the PoVW nonce from this segment receipt’s seal.

Trait Implementations

impl BorshDeserialize for SegmentReceipt

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for SegmentReceipt

fn serialize<__W: Write>(&self, writer: &mut __W) -> Result<(), Error>

impl Clone for SegmentReceipt

fn clone(&self) -> SegmentReceipt

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SegmentReceipt

fn fmt(&self, __derive_more_f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SegmentReceipt

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SegmentReceipt

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<SegmentReceipt> for Asset

Available on (crate features client or prove) and non-target_os="zkvm" only.

type Error = Error

The type returned in the event of a conversion error.

fn try_from(segment_receipt: SegmentReceipt) -> Result<Self>

Performs the conversion.