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ICS2: VerifyPacketReceipt #681

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merged 2 commits into from
Mar 10, 2022
Merged

ICS2: VerifyPacketReceipt #681

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4dd07f6
add optional verifyPacketReceipt method to clientstate
AdityaSripal Mar 9, 2022
b682441
Update spec/core/ics-002-client-semantics/README.md
AdityaSripal Mar 10, 2022
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20 changes: 20 additions & 0 deletions spec/core/ics-002-client-semantics/README.md
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Expand Up @@ -429,6 +429,26 @@ type verifyNextSequenceRecv = (
=> boolean
```

#### Optional Functions


`verifyPacketReceipt` verifies a proof of the absence of an incoming packet receipt at the specified port, specified channel, and specified sequence. It is needed only if the chain wishes to support new channel types other than ORDERED and UNORDERED.
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```typescript
type verifyPacketReceipt = (
clientState: ClientState,
height: Height,
delayPeriodTime: uint64,
delayPeriodBlocks: uint64,
prefix: CommitmentPrefix,
proof: CommitmentProof,
portIdentifier: Identifier,
channelIdentifier: Identifier,
sequence: uint64,
receipt: bytes)
=> boolean
```

#### Query interface

##### Chain queries
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