Beta reset for V22 development (#2830)

* Change beta preconfigured_representatives

One of them was not used. Account->key:

- nano_1beta1ayfkpj1tfbhi3e9ihkocjkqi6ms5e4xrbmbybqnkza1e5jrake8wai ->
259A4011E6CAD1069A97C02C3C1F2AAA32BC093C8D82EE1334F937A4BE803071
- nano_1betazh7m3c9gwcsy7w3rzynbqr9gomjwn3cp59xqky48we46eaqptbdskh4 ->
259A47DE59854777159F1781C7FD44DF0775671E502AB0CFDBCBC23718223117

* Change online weight samples to span a 1-day period for beta

* Beta network reset for V22 development

Genesis
nano_1betag41gqumw8fywwp1yay6k9jinswhqhbjtogmm1ibmnyfo1apej3medr3

* Change epoch 2 send/change threshold to be the same as epoch 1

* Fix difficulty tests

* Change default beta network representative to a burn address

* Fix cross initialization error

nano/core_test/difficulty.cpp

@@ -134,7 +134,7 @@ TEST (difficulty, network_constants)
 	ASSERT_NEAR (1., nano::difficulty::to_multiplier (full_thresholds.epoch_2, full_thresholds.base), 1e-10);
 
 	ASSERT_NEAR (1 / 64., nano::difficulty::to_multiplier (beta_thresholds.epoch_1, full_thresholds.epoch_1), 1e-10);
-	ASSERT_NEAR (2., nano::difficulty::to_multiplier (beta_thresholds.epoch_2, beta_thresholds.epoch_1), 1e-10);
+	ASSERT_NEAR (1., nano::difficulty::to_multiplier (beta_thresholds.epoch_2, beta_thresholds.epoch_1), 1e-10);
 	ASSERT_NEAR (1 / 2., nano::difficulty::to_multiplier (beta_thresholds.epoch_2_receive, beta_thresholds.epoch_1), 1e-10);
 	ASSERT_NEAR (1., nano::difficulty::to_multiplier (beta_thresholds.epoch_2_receive, beta_thresholds.entry), 1e-10);
 	ASSERT_NEAR (1., nano::difficulty::to_multiplier (beta_thresholds.epoch_2, beta_thresholds.base), 1e-10);

nano/lib/config.cpp

@@ -15,7 +15,7 @@ work_thresholds const network_constants::publish_full (
 
 work_thresholds const network_constants::publish_beta (
 0xfffff00000000000, // 64x lower than publish_full.epoch_1
-0xfffff80000000000, // 2x higher than epoch_1
+0xfffff00000000000, // same as epoch_1
 0xffffe00000000000 // 2x lower than epoch_1
 );
 

nano/node/nodeconfig.cpp

@@ -42,10 +42,13 @@ external_address (boost::asio::ip::address_v6{}.to_string ())
 			preconfigured_representatives.push_back (network_params.ledger.genesis_account);
 			break;
 		case nano::nano_networks::nano_beta_network:
+		{
 			preconfigured_peers.push_back (default_beta_peer_network);
-			preconfigured_representatives.emplace_back ("259A4011E6CAD1069A97C02C3C1F2AAA32BC093C8D82EE1334F937A4BE803071");
-			preconfigured_representatives.emplace_back ("259A40656144FAA16D2A8516F7BE9C74A63C6CA399960EDB747D144ABB0F7ABD");
+			nano::account offline_representative;
+			release_assert (!offline_representative.decode_account ("nano_1defau1t9off1ine9rep99999999999999999999999999999999wgmuzxxy"));
+			preconfigured_representatives.emplace_back (offline_representative);
 			break;
+		}
 		case nano::nano_networks::nano_live_network:
 			preconfigured_peers.push_back (default_live_peer_network);
 			preconfigured_representatives.emplace_back ("A30E0A32ED41C8607AA9212843392E853FCBCB4E7CB194E35C94F07F91DE59EF");

nano/secure/common.cpp

@@ -27,7 +27,7 @@ namespace
 {
 char const * test_private_key_data = "34F0A37AAD20F4A260F0A5B3CB3D7FB50673212263E58A380BC10474BB039CE4";
 char const * test_public_key_data = "B0311EA55708D6A53C75CDBF88300259C6D018522FE3D4D0A242E431F9E8B6D0"; // xrb_3e3j5tkog48pnny9dmfzj1r16pg8t1e76dz5tmac6iq689wyjfpiij4txtdo
-char const * beta_public_key_data = "259A4394DB16B1FFE5568476655E844BA59E8EB5D222F20D42E50684D0C16B54"; // nano_1betagcfp7ojzzkof35peohaakx7mt9ddnj4ya8n7sa8imae4ttnm16dm753
+char const * beta_public_key_data = "259A4384075F73E19BEE72C0F23C491E30A678FBBD31D55D3982099D3CDA8116"; // nano_1betag41gqumw8fywwp1yay6k9jinswhqhbjtogmm1ibmnyfo1apej3medr3
 char const * live_public_key_data = "E89208DD038FBB269987689621D52292AE9C35941A7484756ECCED92A65093BA"; // xrb_3t6k35gi95xu6tergt6p69ck76ogmitsa8mnijtpxm9fkcm736xtoncuohr3
 char const * test_genesis_data = R"%%%({
 	"type": "open",
@@ -40,11 +40,11 @@ char const * test_genesis_data = R"%%%({
 
 char const * beta_genesis_data = R"%%%({
 	"type": "open",
-	"source": "259A4394DB16B1FFE5568476655E844BA59E8EB5D222F20D42E50684D0C16B54",
-	"representative": "nano_1betagcfp7ojzzkof35peohaakx7mt9ddnj4ya8n7sa8imae4ttnm16dm753",
-	"account": "nano_1betagcfp7ojzzkof35peohaakx7mt9ddnj4ya8n7sa8imae4ttnm16dm753",
-	"work": "7f5c2eb5e2658e81",
-	"signature": "DB9EFAC98A28EEA048E722F91C2A2720E1D8EF2A81453C80FC53B453180C0A264CE021D38D5B4540B1BBB0C378B80F2DF7389027593C08DDEF9F47934B9CF805"
+	"source": "259A4384075F73E19BEE72C0F23C491E30A678FBBD31D55D3982099D3CDA8116",
+	"representative": "nano_1betag41gqumw8fywwp1yay6k9jinswhqhbjtogmm1ibmnyfo1apej3medr3",
+	"account": "nano_1betag41gqumw8fywwp1yay6k9jinswhqhbjtogmm1ibmnyfo1apej3medr3",
+	"work": "7fa41edc9f5c8049",
+	"signature": "8E771BAC91958B2323A3613ACAAE8A01BB6DD2EA161FA57ADC7223DB37405D0F774B972EEE99D19E2572211E4C2A967E577F36F3DAFA29FAD2BC17911490DA08"
 	})%%%";
 
 char const * live_genesis_data = R"%%%({
@@ -76,7 +76,7 @@ network (network_a), ledger (network), voting (network), node (network), portmap
 	unsigned constexpr kdf_full_work = 64 * 1024;
 	unsigned constexpr kdf_test_work = 8;
 	kdf_work = network.is_test_network () ? kdf_test_work : kdf_full_work;
-	header_magic_number = network.is_test_network () ? std::array<uint8_t, 2>{ { 'R', 'A' } } : network.is_beta_network () ? std::array<uint8_t, 2>{ { 'N', 'D' } } : std::array<uint8_t, 2>{ { 'R', 'C' } };
+	header_magic_number = network.is_test_network () ? std::array<uint8_t, 2>{ { 'R', 'A' } } : network.is_beta_network () ? std::array<uint8_t, 2>{ { 'R', 'B' } } : std::array<uint8_t, 2>{ { 'R', 'C' } };
 }
 
 uint8_t nano::protocol_constants::protocol_version_min (bool use_epoch_2_min_version_a) const
@@ -138,7 +138,7 @@ nano::node_constants::node_constants (nano::network_constants & network_constant
 	unchecked_cleaning_interval = std::chrono::minutes (30);
 	process_confirmed_interval = network_constants.is_test_network () ? std::chrono::milliseconds (50) : std::chrono::milliseconds (500);
 	max_peers_per_ip = network_constants.is_test_network () ? 10 : 5;
-	max_weight_samples = network_constants.is_live_network () ? 4032 : 864;
+	max_weight_samples = network_constants.is_live_network () ? 4032 : 288;
 	weight_period = 5 * 60; // 5 minutes
 }
 

nano/secure/common.hpp

@@ -419,7 +419,7 @@ public:
 	/** Maximum number of peers per IP */
 	size_t max_peers_per_ip;
 
-	/** The maximum amount of samples for a 2 week period on live or 3 days on beta */
+	/** The maximum amount of samples for a 2 week period on live or 1 day on beta */
 	uint64_t max_weight_samples;
 	uint64_t weight_period;
 };