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Bitcoin and the XRP Ledger secure a ledger in fundamentally different ways. Bitcoin issues BTC through proof-of-work mining, with a subsidy that halves every 210,000 blocks and a protocol schedule built around a 21-million-BTC limit. The XRP Ledger (XRPL) began with 100 billion XRP created at launch, does not mine new XRP through block rewards, and destroys a small amount of XRP from each transaction included in a ledger.
Bitcoin makes rewriting history increasingly expensive by requiring additional accumulated computational work. XRPL reaches agreement through validators chosen in each server’s trusted validator list (UNL), using supermajority agreement on transaction sets and ledger hashes. Neither design supports a universal, current verdict that one network is simply “more secure.” The meaningful question is which threats you are evaluating: invalid transactions, history rewrites, stalled processing, concentration, software failure, or loss of your own signing keys.
At a glance
| Dimension | Bitcoin | XRP Ledger |
|---|---|---|
| Initial and ongoing supply model | New BTC enter circulation through block subsidies paid to miners. The subsidy halves every 210,000 blocks; the schedule is designed around a 21-million-BTC limit. | An SEC-hosted 2026 filing states that 100 billion XRP were created in connection with network launch and describes the limit as intended to remain fixed. No mining subsidy is described. |
| Transaction costs | Fees are paid to miners and supplement the block subsidy; they are not newly created BTC. | Each transaction included in a ledger destroys some XRP as a transaction cost. |
| Agreement mechanism | Miners compete to produce proof-of-work blocks; full nodes independently check each block against consensus rules. | Servers exchange proposed transaction sets, and validators from each server’s chosen trusted set converge on a ledger hash. |
| History and finality | More accumulated work makes a reorganization harder, but confirmations are probabilistic rather than an absolute instant guarantee. | A transaction in a validated ledger is treated as final by XRPL documentation. If validators cannot reach the required agreement, progress can pause and the process repeats. |
| Typical timing described by documentation | Bitcoin.org describes new blocks arriving about every ten minutes on average. | XRPL documentation describes near-real-time settlement in roughly three to six seconds and a four-to-six-second consensus process. |
These figures describe protocol rules or documentation, not a live audit of current circulation, validator independence, mining concentration, or attack cost.
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How Bitcoin’s supply rules work
Mining creates the scheduled subsidy
Bitcoin’s issuance is tied to block production. A miner that produces an accepted block can receive a block subsidy consisting of newly created BTC, plus transaction fees from transactions in that block. The subsidy is not discretionary: Bitcoin’s rules reduce it by half every 210,000 blocks, an interval Bitcoin.org characterizes as roughly four years. This predictable reduction is the basis of Bitcoin’s long-term issuance schedule.
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Bitcoin.org describes the monetary limit as 21 million BTC. That is a protocol ceiling, not a statement that exactly 21 million coins are currently circulating or spendable. Coins can be lost, rendered inaccessible by destroyed keys, or otherwise remain unavailable to their owners; those practical questions are separate from the issuance rule.
Full nodes enforce the limit
Mining does not give miners authority to change Bitcoin’s monetary rules. A fully validating node checks every received block against consensus requirements, including the allowed subsidy and total supply. Bitcoin Core’s validation documentation explains: “Bitcoin Core checks each block of transactions it receives to ensure that everything in that block is fully valid—allowing it to trust the block without trusting the miner who created it.” A miner could broadcast an inflationary block, but nodes following the rules would reject it rather than build on it.
Fees are not additional issuance
Bitcoin transaction fees transfer value from transaction senders to the miner whose block includes those transactions. They can become a larger part of miner revenue as the scheduled subsidy declines, but they do not increase the number of BTC authorized by the supply rules.
How XRP supply differs
Creation at network launch
An SEC-hosted filing from 2026 states that 100 billion XRP were created in connection with the launch of the XRP network and describes the supply limit as intended to remain fixed. That is a statement in the filing; the SEC’s role as host should not be read as an independent certification of every future protocol outcome.
This launch-based model is different from Bitcoin’s gradual mining issuance. XRPL validators do not receive newly issued XRP block subsidies, and describing XRP as “mined” obscures how the ledger’s supply was established.
Transaction-cost destruction
The XRP Ledger documentation says that each transaction included in a ledger destroys some XRP as a transaction cost. This burn lowers the remaining quantity over time, but it is not the same as issuing new coins, and it does not imply that a particular fee burn rate can be used to forecast a current supply total.
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Initial supply is not a circulating-supply report
The 100-billion figure identifies the amount described as created at launch. It does not, by itself, establish how much XRP is currently circulating, how much is held in escrow or other accounts, or how much is economically spendable. The sources used here do not provide a current circulating-supply figure, so a precise present-day comparison cannot be made from this information alone.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11| Supply question | Bitcoin | XRP Ledger |
|---|---|---|
| Where did the initial protocol supply come from? | Coins enter through scheduled mining subsidies as blocks are accepted. | 100 billion XRP were stated in a 2026 SEC-hosted filing to have been created at network launch. |
| Can transaction fees create coins? | No. Fees go to miners; only the block subsidy creates new BTC under the issuance rules. | No. The documented transaction cost destroys a small amount of existing XRP. |
| What does the cited limit mean? | A 21-million-BTC protocol limit, separate from lost or inaccessible coins. | An intended fixed limit described in the filing, with the cited sources not establishing current circulating balances. |
How Bitcoin reaches agreement
Proof of work selects the next block
Bitcoin miners compete to find a block whose proof of work satisfies the network’s difficulty target. Nodes treat the chain with the greatest accumulated valid work as the history to follow under the protocol’s chain-selection rules. The Bitcoin Developer Documentation describes the purpose this way: “The block chain is collaboratively maintained by anonymous peers on the network, so Bitcoin requires that each block prove a significant amount of work was invested in its creation to ensure that untrustworthy peers who want to modify past blocks have to work harder than honest peers who only want to add new blocks to the block chain.”
When a transaction is included in a block, later blocks add more work on top of that history. Rewriting an earlier transaction requires redoing the altered block’s work and catching up with, or overtaking, the honest chain’s accumulated work. The deeper the transaction is buried, the more work an attacker generally must reproduce.
Nodes, not miners alone, decide validity
Mining proposes a block; independent full nodes decide whether it is valid. They check transactions, signatures, block structure, subsidy amounts, and other consensus rules. This separation means computational power can influence which valid block is extended, but it cannot make an invalid supply increase acceptable to nodes that enforce the rules.
How the XRP Ledger reaches agreement
Servers exchange proposals
XRPL servers collect transactions and propose candidate sets to validators. Validators publish signed statements about the ledger hash they believe should be accepted. Servers iterate through proposal rounds, compare the responses from validators in their own trusted set, and move toward a common transaction set and ledger hash.
Each server chooses its trusted validators
The UNL is not one universal list applied identically by every server. Each server evaluates proposals from the validator set it trusts. Consensus therefore depends on adequate overlap among those trusted sets and on validators behaving within the protocol’s assumptions. A validator’s signature demonstrates what that validator endorsed; it does not, by itself, prove that every participant on the network used the same list.
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Safety and liveness thresholds
XRPL’s consensus documentation states: “As long as fewer than 20% of trusted validators are faulty, consensus can continue unimpeded; and confirming an invalid transaction would require over 80% of trusted validators to collude.” Those percentages are relative to a particular server’s chosen trusted validators. They are not measurements of 20% or 80% of all nodes, all XRP holders, or all real-world controlling entities.
The same design creates two different failure concerns. If enough trusted validators are faulty or disagree, the network may fail to make progress, causing a pause while servers retry. Confirming an invalid transaction requires the larger collusion threshold described above. A range between the conditions that preserve uninterrupted progress and the condition required to approve an invalid result can therefore produce halted progress rather than a valid-looking but incorrect ledger.
| Security property | Bitcoin’s emphasis | XRPL’s emphasis |
|---|---|---|
| Preventing an invalid history | Nodes reject invalid blocks; rewriting accepted history requires reproducing accumulated proof of work and overtaking later work. | Validators must reach the required supermajority on the same ledger hash; the documented invalid-confirmation condition is over 80% collusion within a server’s trusted set. |
| Keeping the system moving | New valid blocks can continue when miners and nodes remain connected and the chain-selection process functions. | Consensus can continue unimpeded under the documented fewer-than-20%-faulty condition; disagreement or faults can instead halt progress. |
| Main trust assumption | Sufficient honest mining work plus independent full nodes enforcing the rules. | Reliable validator behavior and sufficient overlap among each server’s trusted validator lists. |
What “security” means in this comparison
Protection against a history rewrite
Bitcoin’s protection is expressed in computational cost. An attacker attempting to replace an older block must perform the altered block’s work and compete with the subsequent work produced by honest miners. This is why additional confirmations increase practical resistance to reversal, while never turning a transaction into an instantaneous mathematical guarantee.
XRPL’s protection is expressed in validator agreement. Once a ledger hash receives the required supermajority from the relevant trusted validators and the ledger is validated, the XRPL documentation treats its transactions as immutable. The risk question is therefore whether the trusted sets are sufficiently independent and whether enough validators can be faulty, compromised, or coordinated to violate the assumptions.
Protection against invalid transactions
Bitcoin full nodes independently verify transaction and block validity, including signatures and monetary rules. A miner cannot override those checks by producing a block with an invalid transaction or excess subsidy.
XRPL relies on validators not approving an invalid transaction set and on the supermajority properties of the trusted sets. The documented 80% figure describes the threshold for confirming an invalid result under the stated assumptions; it does not reveal how many independent organizations operate validators in practice.
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Availability and stalled consensus
Security is not only about accepting the correct ledger; it also includes continued availability. Bitcoin’s proof-of-work chain can experience temporary forks, with nodes later following the valid chain that has more accumulated work. XRPL documentation explicitly describes a possibility that consensus fails to reach the needed agreement, in which case servers repeat the process and progress can pause. A system that stops rather than confirms an invalid ledger is preserving safety at the expense of liveness during that failure.
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Concentration and independence
Hash-rate concentration, mining-pool arrangements, validator ownership, UNL overlap, client diversity, and jurisdictional dependence all affect real-world risk. The protocol descriptions here do not provide current, directly comparable measurements for those factors. It would be misleading to compare an XRPL trusted-validator percentage with a Bitcoin hash-rate percentage as though they measured the same resource or control relationship.
Software and implementation risk
Both networks depend on correctly implemented software, secure key handling, reliable networking, and operators who keep systems patched. Consensus rules can be sound while a bug, configuration error, or compromised signing key causes a user or operator to lose funds. Protocol-level security and operational security should be evaluated separately.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Finality and settlement timing
| Question | Bitcoin | XRP Ledger |
|---|---|---|
| When is a result considered settled? | A transaction is included in a block, and each additional confirmation adds more accumulated work. Reversal becomes harder but is not absolutely impossible by a fixed count. | Applications should rely on a transaction appearing in a validated ledger and on its transaction result. XRPL documentation treats validated-ledger transactions as final and immutable. |
| What timing is documented? | Bitcoin.org describes blocks arriving about every ten minutes on average. An average is not a guaranteed interval. | XRPL documentation describes near-real-time settlement in roughly three to six seconds and a four-to-six-second consensus process. This is not a guarantee that every application response or payment risk is resolved in that interval. |
| What should an application check? | Use a confirmation policy appropriate to the transaction’s value and reversal risk; do not import a universal “six confirmations” rule without explaining its context. | Check validated status and the transaction result rather than treating a provisional API response as final. |
Practical guidance for users and developers
If you are accepting Bitcoin
- Wait for the transaction to be included in a valid block.
- Set a confirmation policy based on value, fraud exposure, settlement urgency, and your tolerance for a reorganization.
- Increase the required confirmations for higher-value or less reversible transactions rather than treating one number as universal.
- Verify that the node or service you rely on is reporting the transaction from the chain it considers valid, not merely showing an unconfirmed broadcast.
If you are accepting XRP Ledger payments
- Track the transaction’s validated-ledger status.
- Check the transaction result code and destination details, not only whether an API call returned successfully.
- Do not treat a provisional submission response as equivalent to inclusion in a validated ledger.
- Design recovery handling for a temporary consensus pause or unavailable server, because a failure to reach supermajority can delay progress without proving that funds were lost.
If you are protecting your own keys
A hardware wallet or other self-custody arrangement can help protect private signing keys, but it does not alter Bitcoin’s proof-of-work, XRPL’s validator consensus, supply rules, or finality model. Self-custody also makes the owner responsible for backups, recovery procedures, device security, and confirming transaction details before signing. Losing a key or approving the wrong destination is a wallet-management problem, not a consensus attack.
Common misconceptions corrected
- “XRP is mined like BTC.” The cited XRPL material describes XRP as created at launch, with transaction costs destroying some XRP; it does not describe a mining subsidy.
- “A 100-billion launch supply proves the current circulating supply.” Launch creation, current balances, escrow or ownership arrangements, and spendability are different measurements.
- “An 80% XRPL threshold means 80% of all nodes control the network.” The threshold is expressed relative to a server’s chosen trusted validators.
- “Six Bitcoin confirmations are an absolute guarantee.” Confirmations increase accumulated work and practical resistance to reversal, but Bitcoin finality remains probabilistic.
- “A faster ledger is automatically safer.” XRPL’s documented three-to-six-second settlement and Bitcoin’s roughly ten-minute average block interval measure different processes; speed alone does not establish resistance to every threat.
- “A wallet can make a consensus protocol more secure.” Wallets protect or expose signing keys. They do not change validator agreement, proof of work, or network-wide supply enforcement.
Which network is more secure?
There is no defensible one-word answer from these protocol descriptions. If your primary concern is the cost of rewriting a long-established history, Bitcoin’s security story centers on cumulative proof of work and independent node validation. If your priority is deterministic treatment of a ledger after validators reach the required agreement, XRPL’s model centers on trusted-validator overlap, supermajority signatures, and validated-ledger finality.
Those are different assumptions, not two measurements on a common scale. A current comparison would require a defined threat model and comparable evidence about mining or validator concentration, independence, UNL overlap, software diversity, economic incentives, and operational failures. No directly comparable attack-cost statistic is established here, so claims that Bitcoin or XRPL is categorically safer go beyond the available evidence.
What the comparison can—and cannot—establish
- It can establish that Bitcoin’s new issuance is scheduled through mining subsidies, with halvings every 210,000 blocks and a 21-million-BTC limit described by Bitcoin.org.
- It can establish that a 2026 SEC-hosted filing states that 100 billion XRP were created at launch and intended to remain fixed, while XRPL transaction costs destroy some XRP.
- It can explain the different agreement mechanisms: cumulative proof of work and full-node validation for Bitcoin, versus trusted-validator proposals and ledger-hash supermajority for XRPL.
- It can distinguish probabilistic Bitcoin confirmations from XRPL’s validated-ledger finality language.
- It cannot supply a current XRP circulating total, current validator or mining concentration, or a reliable cross-network attack-cost ranking.
The practical conclusion is to match the network to the risk model you actually face, verify the type of finality your application requires, and keep key custody separate from consensus analysis.
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