[Intro] Yeah, low end pon di floor, bredren Sender-constrained, but listen, yuh hear mi? [Verse 1] Engineer send back di same request, same token, same proof, Signature valid, every check seh yes, yet di data come back again inna di booth, A valid signature nuh mean di request fresh, yuh mus' know, Di proof travel, but di server nuh remember where it did go. [Chorus] Track di jti, every proof get one ID, Duplicate come back? Nuh, reject it, nuh gwaan, nuh try! Track di jti, mek di record hold tight, Same proof inna second time? Reject it, end of di night! Crew: Jti! Jti! Mek di check atomic, one decision, one time! [Verse 2] Htm nuh match, htu pointing at di wrong door, Ath fi di token, iat bounded, nuh stretch it more, Nonce where yuh need it, stop di pre-generated proof, Every check run its own job, nuh bundle dem up under one roof. [Bridge] (Percussion only) Ad-lib: one proof... one request... one chance... Crew: Nuh twice! Nuh twice! [Outro] Track di jti, reject di repeat, lock it down, Signature good nuh mean di request genuine, bredren, turn it round! Crew: Reject! Reject! Track di jti, reject di repeat!
