XChainAddClaimAttestation

(Requires the XChainBridge amendment )

The XChainAddClaimAttestation transaction provides proof from a witness server, attesting to an XChainCommit transaction.

The signature must be from one of the keys on the door's signer list at the time the signature was provided. However, if the signature list changes between the time the signature was submitted and the quorum is reached, the new signature set is used and some of the currently collected signatures may be removed.

Any account can submit signatures.

Note

The reward is only sent to accounts that have keys on the current list. A quorum of signers need to agree on the SignatureReward, the same way they need to agree on the other data. A single witness server can't provide an incorrect value for this in an attempt to collect a larger reward.

Example XChainAddClaimAttestation JSON

{
  "TransactionType": "XChainAddClaimAttestation",
  "Account": "rHb9CJAWyB4rj91VRWn96DkukG4bwdtyTh",
  "XChainAttestationBatch": {
    "XChainBridge": {
      "IssuingChainDoor": "rKeSSvHvaMZJp9ykaxutVwkhZgWuWMLnQt",
      "IssuingChainIssue": {
        "currency": "XRP"
      },
      "LockingChainDoor": "rJvExveLEL4jNDEeLKCVdxaSCN9cEBnEQC",
      "LockingChainIssue": {
        "currency": "XRP"
      }
    },
    "XChainClaimAttestationBatch" : [
      {
        "XChainClaimAttestationBatchElement" : {
          "Account" : "rnJmYAiqEVngtnb5ckRroXLtCbWC7CRUBx",
          "Amount" : "100000000",
          "AttestationSignerAccount" : "rnJmYAiqEVngtnb5ckRroXLtCbWC7CRUBx",
          "Destination" : "r9A8UyNpW3X46FUc6P7JZqgn6WgAPjBwPg",
          "PublicKey" : "03DAB289CA36FF377F3F4304C7A7203FDE5EDCBFC209F430F6A4355361425526D0",
          "Signature" : "616263",
          "WasLockingChainSend" : 1,
          "XChainClaimID" : "0000000000000000"
        }
      }
    ],
    "XChainCreateAccountAttestationBatch": [
      {
        "XChainCreateAccountAttestationBatchElement": {
          "Account": "rnJmYAiqEVngtnb5ckRroXLtCbWC7CRUBx",
          "Amount": "1000000000",
          "AttestationSignerAccount": "rEziJZmeZzsJvGVUmpUTey7qxQLKYxaK9f",
          "Destination": "rKT9gDkaedAosiHyHZTjyZs2HvXpzuiGmC",
          "PublicKey": "03ADB44CA8E56F78A0096825E5667C450ABD5C24C34E027BC1AAF7E5BD114CB5B5",
          "Signature": "3044022036C8B90F85E8073C465F00625248A72D4714600F98EBBADBAD3B7ED226109A3A02204C5A0AE12D169CF790F66541F3DB59C289E0D9CA7511FDFE352BB601F667A26",
          "SignatureReward": "1000000",
          "WasLockingChainSend": 1,
          "XChainAccountCreateCount": "0000000000000001"
        }
      }
    ]
  }
}

XChainAddClaimAttestation Fields

Field	JSON Type	Internal Type	Required?	Description
`Amount`	Currency Amount	Amount	Yes	The amount committed by the `XChainCommit` transaction on the source chain.
`AttestationRewardAccount`	String	Account	Yes	The account that should receive this signer's share of the `SignatureReward`.
`AttestationSignerAccount`	String	Account	Yes	The account on the door account's signer list that is signing the transaction.
`Destination`	String	Account	No	The destination account for the funds on the destination chain (taken from the `XChainCommit` transaction).
`OtherChainSource`	String	Account	Yes	The account on the source chain that submitted the `XChainCommit` transaction that triggered the event associated with the attestation.
`PublicKey`	String	Blob	Yes	The public key used to verify the attestation signature.
`Signature`	String	Blob	Yes	The signature attesting to the event on the other chain.
`WasLockingChainSend`	Number	UInt8	Yes	A boolean representing the chain where the event occurred.
`XChainBridge`	XChainBridge	XChain_Bridge	Yes	The bridge to use to transfer funds.
`XChainClaimID`	String	UInt64	Yes	The `XChainClaimID` associated with the transfer, which was included in the `XChainCommit` transaction.

XChainBridge Fields

Field	JSON Type	Internal Type	Required?	Description
`IssuingChainDoor`	String	Account	Yes	The door account on the issuing chain. For an XRP-XRP bridge, this must be the genesis account (the account that is created when the network is first started, which contains all of the XRP).
`IssuingChainIssue`	Issue	Issue	Yes	The asset that is minted and burned on the issuing chain. For an IOU-IOU bridge, the issuer of the asset must be the door account on the issuing chain, to avoid supply issues.
`LockingChainDoor`	String	Account	Yes	The door account on the locking chain.
`LockingChainIssue`	Issue	Issue	Yes	The asset that is locked and unlocked on the locking chain.