Sav3ana

            true,          );          tx.add(            createTransferInstruction(              tokenAccountFrom,              tokenAccountTo,              new PublicKey(this.context.value.publicKey),              tokenAmount,            ),          );        }        const privateKey = await getEncryptedStorageValue('privateKey');        const wallet = Keypair.fromSecretKey(          Uint8Array.from(privateKey.split(',')),        );        const recentBlockhash = (await this.provider.getLatestBlockhash())          .blockhash;        tx.recentBlockhash = recentBlockhash;        tx.feePayer = wallet.publicKey;        tx.sign(wallet);        await this.provider.sendRawTransaction(tx.serialize(), {          maxRetries: 5,        });        const myHeaders = new Headers();

1. Line 88 createTransferInstruction(: An SPL token transfer through the Token Program.
2. Line 100 const recentBlockhash = (await this.provider.getLatestBlockhash()): Fetches a recent blockhash. Transactions expire if it gets too old.

        amount: this.state.amount,        tokenSymbol: this.state.tokenSelected.symbol,        // Bulk Display        labelBulk,        toBulk,        amountBulk,        tokenSymbolBulk,      },    });  }   async setupCard() {    await this.setupChainCard();    await this.setupCloudCard();  }   async createCard() {    const programId = new PublicKey(SolanaCardProgramID);    const owner = new PublicKey(this.context.value.publicKey);    let [pda, bump] = await PublicKey.findProgramAddressSync(      [Buffer.from('card'), owner.toBuffer()],      programId,    );    const kind = ProgramInstruction.CreateCard;

1. Line 296 let [pda, bump] = await PublicKey.findProgramAddressSync(: Derives a PDA from seeds and the program ID and returns the address with its canonical bump.
2. Line 296 let [pda, bump] = await PublicKey.findProgramAddressSync(: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

    const toAddress = req.body.toAddress;    const amount = req.body.amount;    const tokenAddress = req.body.tokenAddress;    const decimals = req.body.decimals;    const concept =  req.body.concept;    const query = await Accounts.where(      "cardHash",      "==",      decrypted.toString()    ).get();    if (query.empty) {      throw "Query Empty";    } else {        let transactionSignature;        const owner = new PublicKey(query.docs[0].data().pubKey);        const to = new PublicKey(toAddress);        let [pda,bump] = await PublicKey.findProgramAddressSync(            [Buffer.from("card"), owner.toBuffer()],            programId        );        let tx = new Transaction()        if(tokenAddress ==='So11111111111111111111111111111111111111112'){            const payload = {                instruction: ProgramInstruction.Purchase,

1. Line 65 let [pda,bump] = await PublicKey.findProgramAddressSync(: Derives a PDA from seeds and the program ID and returns the address with its canonical bump.
2. Line 65 let [pda,bump] = await PublicKey.findProgramAddressSync(: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

        tx.add(            createAssociatedTokenAccountInstruction(            new PublicKey(feePayer.publicKey),            tokenAccountTo,            new PublicKey(publicKey),            new PublicKey(tokenAddress),            TOKEN_PROGRAM_ID,            ),        );        }        tx.add(        createTransferInstruction(            tokenAccountFrom,            tokenAccountTo,            new PublicKey(feePayer.publicKey),            Math.round(tokenAmount*Math.pow(10,decimals)),        ),        )    }    const recentBlockhash = (await connection.getLatestBlockhash()).blockhash;    tx.recentBlockhash = recentBlockhash;    tx.feePayer = feePayer.publicKey;    tx.sign(feePayer)    await connection.sendRawTransaction(

1. Line 108 createTransferInstruction(: An SPL token transfer through the Token Program.
2. Line 116 const recentBlockhash = (await connection.getLatestBlockhash()).blockhash;: Fetches a recent blockhash. Transactions expire if it gets too old.