Doubt on replacement transaction hash

[reddyismav]

Can we check for wait and replacement transaction even if we had done the transaction some time before ? Can we pass the transaction hash and will it give back the replacement transaction

[ricmoo]

No, that is not generally possible. Not without customized services.

The checking of replacement is done by monitoring the account+nonce pair along with the blockNumber (for performance reasons), so all those are required to examine for a replacement transaction. Just the hash is insufficient.

The information for that is generally unavailable; the blockchain only stores data that was actually mined (since it was paid for by the process of mining), so transactions that are never mined and effectively only ever existed in the mempool are discarded.

[reddyismav]

Cool. Thanks. Thats what I thought.

Thanks a lot : )