Transaction Hashes (TXIDs) & Cryptographic Proof
π‘ Every transfer is etched into a permanent, timestamped receipt that nobody can change.
A transaction hash (TXID) is a unique 64-character hexadecimal identifier produced when a cryptocurrency transfer is validated and confirmed by network miners or validators.
Because blockchains are cryptographically immutable, historical transaction records cannot be deleted, altered, or forged after confirmation.
Investigators use the TXID as the incontrovertible starting point: it establishes the exact sender address, recipient address, block height, unix timestamp, gas fees, and token contract interaction.