@@ -288,6 +288,7 @@ BITCOIN_CORE_H = \
   interfaces/wallet.h \
   kernel/blockmanager_opts.h \
   kernel/chain.h \
+  kernel/chainparams.h \
   kernel/chainstatemanager_opts.h \
   kernel/checks.h \
   kernel/coinstats.h \
@@ -994,6 +995,7 @@ libbitcoin_common_a_SOURCES = \
   external_signer.cpp \
   governance/common.cpp \
   init/common.cpp \
+  kernel/chainparams.cpp \
   key.cpp \
   key_io.cpp \
   llmq/core_write.cpp \
@@ -1317,6 +1319,7 @@ libdashkernel_la_SOURCES = \
   instantsend/lock.cpp \
   kernel/chain.cpp \
   kernel/checks.cpp \
+  kernel/chainparams.cpp \
   kernel/coinstats.cpp \
   kernel/context.cpp \
   kernel/cs_main.cpp \
 
@@ -16,6 +16,7 @@
 #include <util/helpers.h>
 
 #include <chain.h>
+#include <chainparams.h>
 #include <deploymentstatus.h>
 #include <validation.h>
 
 
@@ -11,6 +11,7 @@
 //
 // It is part of the libbitcoinkernel project.
 
+#include <kernel/chainparams.h>
 #include <kernel/checks.h>
 #include <kernel/context.h>
 #include <kernel/validation_cache_sizes.h>
@@ -62,7 +63,7 @@ int main(int argc, char* argv[])
 
     // SETUP: Misc Globals
     SelectParams(CBaseChainParams::MAIN);
-    const CChainParams& chainparams = Params();
+    auto chainparams = CChainParams::Main();
 
     kernel::Context kernel_context{};
     // We can't use a goto here, but we can use an assert since none of the
@@ -91,7 +92,7 @@ int main(int argc, char* argv[])
 
     // SETUP: Chainstate
     const ChainstateManager::Options chainman_opts{
-        .chainparams = chainparams,
+        .chainparams = *chainparams,
     };
     ChainstateManager chainman{chainman_opts};
 
 
@@ -6,6 +6,7 @@
 
 #include <chainlock/clsig.h>
 #include <chainlock/handler.h>
+#include <chainparams.h>
 #include <instantsend/instantsend.h>
 #include <llmq/signing_shares.h>
 #include <masternode/sync.h>
 
@@ -6,6 +6,8 @@
 #ifndef BITCOIN_CHAINPARAMS_H
 #define BITCOIN_CHAINPARAMS_H
 
+#include <kernel/chainparams.h>
+
 #include <chainparamsbase.h>
 #include <consensus/params.h>
 #include <llmq/params.h>
@@ -14,189 +16,13 @@
 #include <protocol.h>
 #include <util/hash_type.h>
 
+#include <cstdint>
 #include <memory>
 #include <optional>
 #include <string>
+#include <unordered_map>
 #include <vector>
 
-typedef std::map<int, uint256> MapCheckpoints;
-
-struct CCheckpointData {
-    MapCheckpoints mapCheckpoints;
-
-    int GetHeight() const {
-        const auto& final_checkpoint = mapCheckpoints.rbegin();
-        return final_checkpoint->first /* height */;
-    }
-};
-
-struct AssumeutxoHash : public BaseHash<uint256> {
-    explicit AssumeutxoHash(const uint256& hash) : BaseHash(hash) {}
-};
-
-struct EvoSnapshotHash : public BaseHash<uint256> {
-    explicit EvoSnapshotHash(const uint256& hash) : BaseHash(hash) {}
-};
-
-/**
- * Holds configuration for use during UTXO snapshot load and validation. The contents
- * here are security critical, since they dictate which UTXO snapshots are recognized
- * as valid.
- */
-struct AssumeutxoData {
-    //! The expected hash of the deserialized UTXO set.
-    const AssumeutxoHash hash_serialized;
-
-    //! The expected single-SHA256 hash of the canonical Dash evo section.
-    const EvoSnapshotHash evo_hash;
-
-    //! Used to populate the nChainTx value, which is used during BlockManager::LoadBlockIndex().
-    //!
-    //! We need to hardcode the value here because this is computed cumulatively using block data,
-    //! which we do not necessarily have at the time of snapshot load.
-    const unsigned int nChainTx;
-};
-
-using MapAssumeutxo = std::map<int, const AssumeutxoData>;
-
-/**
- * Holds various statistics on transactions within a chain. Used to estimate
- * verification progress during chain sync.
- *
- * See also: CChainParams::TxData, GuessVerificationProgress.
- */
-struct ChainTxData {
-    int64_t nTime;
-    int64_t nTxCount;
-    double dTxRate;
-};
-
-/**
- * CChainParams defines various tweakable parameters of a given instance of the
- * Dash system.
- */
-class CChainParams
-{
-public:
-    enum Base58Type {
-        PUBKEY_ADDRESS,
-        SCRIPT_ADDRESS,
-        SECRET_KEY,     // BIP16
-        EXT_PUBLIC_KEY, // BIP32
-        EXT_SECRET_KEY, // BIP32
-
-        MAX_BASE58_TYPES
-    };
-
-    const Consensus::Params& GetConsensus() const { return consensus; }
-    const CMessageHeader::MessageStartChars& MessageStart() const { return pchMessageStart; }
-    uint16_t GetDefaultPort() const { return nDefaultPort; }
-    uint16_t GetDefaultPort(Network net) const
-    {
-        return net == NET_I2P ? I2P_SAM31_PORT : GetDefaultPort();
-    }
-    uint16_t GetDefaultPort(const std::string& addr) const
-    {
-        CNetAddr a;
-        return a.SetSpecial(addr) ? GetDefaultPort(a.GetNetwork()) : GetDefaultPort();
-    }
-    uint16_t GetDefaultPlatformP2PPort() const { return nDefaultPlatformP2PPort; }
-    uint16_t GetDefaultPlatformHTTPPort() const { return nDefaultPlatformHTTPPort; }
-
-    const CBlock& GenesisBlock() const { return genesis; }
-    const CBlock& DevNetGenesisBlock() const { return devnetGenesis; }
-    /** Default value for -checkmempool and -checkblockindex argument */
-    bool DefaultConsistencyChecks() const { return fDefaultConsistencyChecks; }
-    /** Require addresses specified with "-externalip" parameter to be routable */
-    bool RequireRoutableExternalIP() const { return fRequireRoutableExternalIP; }
-    /** If this chain allows time to be mocked */
-    bool IsMockableChain() const { return m_is_mockable_chain; }
-    /** If this chain is exclusively used for testing */
-    bool IsTestChain() const { return m_is_test_chain; }
-    uint64_t PruneAfterHeight() const { return nPruneAfterHeight; }
-    /** Minimum free space (in GB) needed for data directory */
-    uint64_t AssumedBlockchainSize() const { return m_assumed_blockchain_size; }
-    /** Minimum free space (in GB) needed for data directory when pruned; Does not include prune target*/
-    uint64_t AssumedChainStateSize() const { return m_assumed_chain_state_size; }
-    /** Whether it is possible to mine blocks on demand (no retargeting) */
-    bool MineBlocksOnDemand() const { return consensus.fPowNoRetargeting; }
-    /** Allow multiple addresses to be selected from the same network group (e.g. 192.168.x.x) */
-    bool AllowMultipleAddressesFromGroup() const { return fAllowMultipleAddressesFromGroup; }
-    /** How long to wait until we allow retrying of a LLMQ connection  */
-    int LLMQConnectionRetryTimeout() const { return nLLMQConnectionRetryTimeout; }
-    /** Return the network string */
-    std::string NetworkIDString() const { return strNetworkID; }
-    /** Return the list of hostnames to look up for DNS seeds */
-    const std::vector<std::string>& DNSSeeds() const { return vSeeds; }
-    const std::vector<unsigned char>& Base58Prefix(Base58Type type) const { return base58Prefixes[type]; }
-    /** DIP-18 Platform address bech32m HRP: "dash" on mainnet, "tdash" on test chains */
-    const std::string& Bech32PlatformHRP() const { return bech32_platform_hrp; }
-    int ExtCoinType() const { return nExtCoinType; }
-    const std::vector<uint8_t>& FixedSeeds() const { return vFixedSeeds; }
-    const CCheckpointData& Checkpoints() const { return checkpointData; }
-
-    //! Get allowed assumeutxo configuration.
-    //! @see ChainstateManager
-    const MapAssumeutxo& Assumeutxo() const { return m_assumeutxo_data; }
-
-    const ChainTxData& TxData() const { return chainTxData; }
-    void UpdateDIP3Parameters(int nActivationHeight, int nEnforcementHeight);
-    void UpdateDIP8Parameters(int nActivationHeight);
-    void UpdateBudgetParameters(int nMasternodePaymentsStartBlock, int nBudgetPaymentsStartBlock, int nSuperblockStartBlock);
-    void UpdateLLMQInstantSend(Consensus::LLMQType llmqType);
-    /**
-     * Validate params for Masternodes EHF
-     *
-     * @param[in] nBit The version bit to update
-     * @param[in] timePast The block time to validate if release is already time-outed
-     * @return Whether params are legit and params are updated (if release is known)
-     */
-    bool IsValidMNActivation(int nBit, int64_t timePast) const;
-    int PoolMinParticipants() const { return nPoolMinParticipants; }
-    int PoolMaxParticipants() const { return nPoolMaxParticipants; }
-    int FulfilledRequestExpireTime() const { return nFulfilledRequestExpireTime; }
-    const std::string& SporkAddress() const { return strSporkAddress; }
-    int CreditPoolPeriodBlocks() const { return nCreditPoolPeriodBlocks; }
-    [[nodiscard]] std::optional<Consensus::LLMQParams> GetLLMQ(Consensus::LLMQType llmqType) const;
-
-protected:
-    CChainParams() {}
-
-    Consensus::Params consensus;
-    CMessageHeader::MessageStartChars pchMessageStart;
-    uint16_t nDefaultPort;
-    uint64_t nPruneAfterHeight;
-    uint64_t m_assumed_blockchain_size;
-    uint64_t m_assumed_chain_state_size;
-    std::vector<std::string> vSeeds;
-    std::vector<unsigned char> base58Prefixes[MAX_BASE58_TYPES];
-    std::string bech32_platform_hrp;
-    int nExtCoinType;
-    std::string strNetworkID;
-    CBlock genesis;
-    CBlock devnetGenesis;
-    std::vector<uint8_t> vFixedSeeds;
-    bool fDefaultConsistencyChecks;
-    bool fRequireRoutableExternalIP;
-    bool m_is_test_chain;
-    bool fAllowMultipleAddressesFromGroup;
-    bool m_is_mockable_chain;
-    int nLLMQConnectionRetryTimeout;
-    CCheckpointData checkpointData;
-    MapAssumeutxo m_assumeutxo_data;
-    ChainTxData chainTxData;
-    int nPoolMinParticipants;
-    int nPoolMaxParticipants;
-    int nFulfilledRequestExpireTime;
-    std::string strSporkAddress;
-    uint16_t nDefaultPlatformP2PPort;
-    uint16_t nDefaultPlatformHTTPPort;
-    /// The number of blocks the credit pool tracks; 576 (one day) on mainnet, reduced on regtest
-    int nCreditPoolPeriodBlocks;
-
-    void AddLLMQ(Consensus::LLMQType llmqType);
-};
-
 /**
  * Creates and returns a std::unique_ptr<CChainParams> of the chosen chain.
  * @returns a CChainParams* of the chosen chain.
 
@@ -6,6 +6,8 @@
 
 #include <consensus/params.h>
 
+#include <string_view>
+
 const struct VBDeploymentInfo VersionBitsDeploymentInfo[Consensus::MAX_VERSION_BITS_DEPLOYMENTS] = {
     {
         /*.name =*/ "testdummy",
@@ -58,3 +60,33 @@ std::string DeploymentName(Consensus::BuriedDeployment dep)
     } // no default case, so the compiler can warn about missing cases
     return "";
 }
+
+std::optional<Consensus::BuriedDeployment> GetBuriedDeployment(const std::string_view name)
+{
+    if (name == "bip147") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_BIP147;
+    } else if (name == "bip34") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_HEIGHTINCB;
+    } else if (name == "dersig") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_DERSIG;
+    } else if (name == "cltv") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_CLTV;
+    } else if (name == "csv") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_CSV;
+    } else if (name == "brr") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_BRR;
+    } else if (name == "dip0001") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_DIP0001;
+    } else if (name == "dip0008") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_DIP0008;
+    } else if (name == "dip0024") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_DIP0024;
+    } else if (name == "v19") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_V19;
+    } else if (name == "v20") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_V20;
+    } else if (name == "mn_rr") {
+        return Consensus::BuriedDeployment::DEPLOYMENT_MN_RR;
+    }
+    return std::nullopt;
+}
@@ -7,6 +7,7 @@
 
 #include <consensus/params.h>
 
+#include <optional>
 #include <string>
 
 struct VBDeploymentInfo {
@@ -26,4 +27,6 @@ inline std::string DeploymentName(Consensus::DeploymentPos pos)
     return VersionBitsDeploymentInfo[pos].name;
 }
 
+std::optional<Consensus::BuriedDeployment> GetBuriedDeployment(const std::string_view deployment_name);
+
 #endif // BITCOIN_DEPLOYMENTINFO_H
@@ -6,6 +6,7 @@
 
 #include <bls/bls_batchverifier.h>
 #include <chainlock/chainlock.h>
+#include <chainparams.h>
 #include <consensus/params.h>
 #include <cxxtimer.hpp>
 #include <instantsend/instantsend.h>