From the cashier to the chain
Crypto casino glossary: memo, nonce, gas, confirmation and the other terms
The words you meet on the cashier screen, in the terms and in a block explorer, in plain English in four groups. At the end of each group is a link to the page that sets the subject out in full.
This crypto casino glossary explains, briefly and plainly, the terms you will meet on the deposit screen, in the clauses of the terms and in a block explorer. The terms come in four groups: the network and the chain, the cashier, security and proof, and bonuses.
The explanations are general; where what matters is how a particular operator uses a term, the clause number stands beside it. If a word catches you out, look here first and then at the page named at the end of the group for the detail.
Crypto casino glossary: the network and the chain
Blockchain
The shared ledger to which transactions are added in order, in blocks. Once a send has gone into a block it cannot be undone; which is why neither you nor the cashier can recall a coin that went to the wrong address or the wrong network.
Block confirmation
Every new block added on top of the block holding your send counts as one confirmation. Operators decide for themselves after how many confirmations the balance becomes playable; Rocketpot writes one confirmation in cl. 10.5, and Bitcasino.io three confirmations before a withdrawal request in cl. 6.1.
Choosing the network
The same coin can travel on more than one chain; USDT exists on both Tron and Ethereum. The network you select on the deposit screen must be the same as the network in the wallet you send from. Rainbet cl. 7.9 writes that a send arriving from an unsupported network can be lost.
TRC20
The token standard on the Tron network. The TRC20 version of USDT is often seen at cashiers; its addresses begin with the letter “T”. Its addresses and fees differ from the ERC20 version of the same coin, and the two cannot be used in place of each other.
ERC20
The token standard on the Ethereum network. On this version of stablecoins such as USDT and USDC, the send fee is paid in ETH. Addresses begin with “0x” and can look identical to BEP20 addresses, which is exactly why the choice of network matters.
BEP20
The token standard on BNB Smart Chain. Because the address format is the same as ERC20, choosing the wrong network is not easily noticed; read which network the cashier's deposit screen names a second time before you send.
Gas
On Ethereum and similar networks, the price of having a transaction written to the chain. It rises as the network gets busier, and it comes out of the ETH in your wallet rather than out of the amount you send. With no ETH in the wallet at all, you cannot send an ERC20 token.
Network fee
The general name for the price of a send paid to miners or validators. It is not the same thing as the operator's own withdrawal fee; one goes to the chain, the other to the cashier. Rainbet cl. 8.2 writes that it takes no fee of its own on the withdrawal of a wagered deposit.
Memo and tag
On some coins such as XRP, many users share the same deposit address; what tells you apart is the memo or tag number beside the address. If you leave that field empty, the send reaches the address but may not be credited to your account.
Transaction ID (TXID)
The unique number of every send on the chain. When a deposit fails to reach the cashier, this is the first thing the support team asks for. The same number also shows, when you come to keep records later, which amount went on which day.
Block explorer
An open site where you can enter a transaction ID or an address and see the record on the chain. It is where you read how many confirmations a send has received, which address it went to and how much network fee was paid.
The detail of choosing the network, the memo and the three deductions is set out on the networks and fees page.
Cashier terms
The cashier
The collective name for a casino's deposit and withdrawal screens. The coin list, the network options, the minimum amounts and pending requests all appear here. Under Shuffle.com cl. 9.4, which currencies are accepted is shown at the cashier only after registration.
Minimum deposit
The smallest amount that will be credited to the balance. A send below it can be lost: Rocketpot cl. 10.2 gives the minimum as 0.001 BTC and treats smaller deposits as lost, and Bitcasino.io cl. 5 treats anything below it as void.
mBTC and satoshi
An mBTC is a thousandth of a BTC; cashiers sometimes write small amounts in this unit, and 0.007 mBTC is 0.000007 BTC. A satoshi is the smallest unit, a hundred-millionth. Wolfbet cl. 14 §9 writes that amounts can go down to the eighth decimal place; that place is a satoshi.
Stablecoin
A token designed to be pegged to a currency, usually the US dollar. USDT and USDC are the commonest examples. Rate volatility is low, but the rules on choosing the network and on minimum amounts apply exactly as they do to other coins.
Spread
The gap between the buy and the sell price showing at an exchange at the same moment. Even when the commission is written separately, the spread is taken on top of it; when you convert a coin into lira the total cost emerges only when the two are worked out together.
Period cap
The highest withdrawal amount the operator will pay within a day, a week or a month. Wild Fortune cl. 11.8 starts at €1,000 a day; Wolfbet's ceilings are $8,000 a week and $30,000 a month (cl. 15 §5).
Payment in instalments
A large win being paid out spread over months. Rocketpot cl. 11.5 pays winnings above $5,000 at a maximum of $5,000 a month; Metaspins cl. 12.5 likewise speaks of a monthly instalment depending on the limits of the payment method.
Wagering the deposit
The requirement that the amount deposited be used in play a certain number of times before a withdrawal. Vave cl. 8.11 asks for three times on casino and live casino and once on sport. This is a separate rule from a bonus's wagering requirement.
Document threshold
The amount at which the operator writes that it will start asking for identity documents. Bitcasino.io cl. 6.6 gives €2,500 or the crypto equivalent; Rocketpot cl. 11.4 and 12.4 carry two separate figures, between $2,000 and $2,500.
The deposit steps are in the deposit guide, and the withdrawal caps and instalments are gathered on the withdrawal page.
Crypto casino glossary: security and proof
KYC
Short for “know your customer”: the operator confirming your identity, your address and sometimes the source of the money with documents. Most of the operators in the ranking have such a clause in their terms; the difference lies in at which moment and at which amount it starts.
AML
Short for the rules against money laundering. Operators examine suspicious transactions as a condition of their licence; Wolfbet cl. 5 §1 reserves the right to ask for KYC and AML documents. The source of the money deposited can also be asked about under this heading.
Document deadline
The time you are given to deliver documents once they are asked for. The shortest is at Rainbet: cl. 20.1 gives 72 hours for documents. At Rocketpot it is 30 calendar days (cl. 12.2), at Wild Fortune two weeks (cl. 8.4), at Vave 14 days (cl. 8.7).
Private key
The secret string that confers the right to spend the coin at an address. Whoever holds the key effectively owns the coin. In an exchange or casino account the key stays with the institution; in your own wallet it is yours.
Recovery phrase (seed)
A list, usually of 12 or 24 words, that serves to rebuild the wallet. It is shared with no one and typed into no site or form; no one, the support team included, asks for it. Writing it on paper and keeping it offline is the common method.
Custodial account
An account where the keys are held by an institution; an exchange account and a casino balance are of this kind. It is easy to use, but if the account is frozen or closed, access to the coin rests on the institution's decision. Its opposite is a self-custody wallet, where the key is yours alone: it adds a link and a network fee to the chain and in return makes methods such as a signed message possible.
Signed message
Showing that an address belongs to you by signing a text with that address's key. Rocketpot cl. 11.8 writes that it may ask for a signed message from the address an early deposit came from; this can only be done with a wallet whose key you hold.
Two-step verification (2FA)
Logging in with a code from an application on your phone alongside the password. Wolfbet cl. 15 §1 requires a verified email address and two-step login before the first withdrawal. This is an account-security step, not a demand for identity documents.
Provably fair
A method by which the player can recompute for themselves, and so see, that the result of a game round was calculated from data fixed before the round began. It shows that a single round was not altered; it does not show the house edge or the payout.
Server seed
The secret value the operator generates before the round. Before play begins only its hash is shown; the value itself is revealed afterwards and is checked against the hash.
Client seed
The value the player sets or can change. Combined with the server seed it determines the result; it exists to make it harder for the operator to choose the result on its own.
Nonce
The sequence number that goes up by one on every round played with the same seed pair. Every round played with the same two values therefore produces a different result, and each round can be recomputed separately.
Licence register
The open record kept by the licensing authority showing the number, the holding company and the domain. For Curaçao the register at cert.cga.cw is used and for Anjouan the one at anjouangaming.com; the date of the search is part of the result.
The two shapes of the chain are in the drawing above; the steps of recomputing with the seed and the nonce are set out in the provably fair guide.
Bonus terms
Welcome package
Bonuses added as a percentage to the first few deposits. On Vave's page as read on 24 August 2026 it said 150% on the first deposit and 100%, 50% and 25% on the next three. No wagering multiplier appeared on that page.
Wagering multiplier
The number showing how many times a bonus amount has to be used in play before it becomes withdrawable. Thirty times means a bonus of 100 lira calls for 3,000 lira in bets. The multiplier is written in the bonus terms and is not always visible on the promotions page.
Free spin
A round played on a particular slot without coming out of your balance. The winnings are usually credited to the bonus balance and are subject to their own wagering requirement; which game and how many rounds it applies to is in the campaign terms.
Bonus balance
An amount held apart from the cash balance and not withdrawable until the conditions are met. Many cashiers use the cash balance first and the bonus balance afterwards; which is spent first is set by the terms.
Cashback
A percentage of the net loss over a given period being credited back to the account. The tier, the rate and the period are set by each operator; some programmes are open only to certain membership tiers.
RTP
The ratio showing what percentage of bets a game is designed to return to players over the long run. An RTP of 96% is an average that emerges over a great many rounds, not in a single session. The rest of the hundred is the house edge, the share that stays with the operator in the long run; the provably fair method does not remove that share.
The deposit being wagered at different multiples on the sport and casino sides is dealt with on the betting with crypto page.