chore(tapi): set WIP0028 TAPI start date at 18 February 2025, 9am UTC

Author: drcpu-github

data_structures/src/chain/tapi.rs

@@ -226,8 +226,8 @@ impl TapiEngine {
                     votes: 0,
                     period: TWO_WEEKS,
                     wip: "WIP0028".to_string(),
-                    // Start signaling on December 14 at 9am UTC
-                    init: 2922240,
+                    // Start signaling on 18 February 2025 at 9am UTC
+                    init: 3_048_960,
                     end: u32::MAX,
                     bit: 9,
                 };
@@ -457,7 +457,7 @@ pub fn in_emergency_period(
         )
     } else if Environment::Mainnet == environment
         && superblock_index > 224_300
-        && superblock_index < 292_224
+        && superblock_index < 304_896
     {
         Some(
             FOURTH_EMERGENCY_COMMITTEE
@@ -866,7 +866,7 @@ mod tests {
 
         let (epoch, old_wips) = t.initialize_wip_information(Environment::Mainnet);
         // The first block whose vote must be counted is the one from WIP0028
-        let init_epoch_wip0028 = 2922240;
+        let init_epoch_wip0028 = 3_048_960;
         assert_eq!(epoch, init_epoch_wip0028);
         // The TapiEngine was just created, there list of old_wips must be empty
         assert_eq!(old_wips, HashSet::new());

data_structures/src/superblock.rs

@@ -471,11 +471,19 @@ impl SuperBlockState {
         // Override superblock signing committee during the bootstrapping of wit/2
         self.signing_committee = match get_environment() {
             Environment::Mainnet => {
-                // wit/2 activates at 2_922_240 + 14 x 1_920 (TAPI delay) + 7 x 1_920 (instant activation delay) = 2_962_560
-                // disabling the activation committee at 299_712 implies we add an extra 8 weeks worth of time (8 x 4320)
-                // to inplement a decentralized superblock committee selection mechanism. Note that any delay in activating
-                // wit/2 will essentially be subtracted from the extra 8 weeks,
-                if (292_224..299_712).contains(&superblock_index) {
+                // wit/2 activation timeline and superblock bootstrap committee:
+                //      TAPI initialization is scheduled at epoch 3_048_960
+                //      14 x 1_920 epochs for V1_8 activation assuming TAPI passes after two weeks
+                //      300M needs to be staked before V2_0 can be scheduled (unknown delay, assume it is instant)
+                //      7 x 1_920 epochs activation delay for V2_0
+                //      21 epochs for superblock confirmation of all above actions
+                //      3_048_960 + 14 x 1_920 + 7 x 1_920 + 21 = 3_089_301
+                //
+                //      wit/2.0 is now activated with a fixed superblock bootstrap committee
+                //
+                //      8 x 7 x 4320 epochs to implement a decentralized superblock committee selection mechanism
+                //      any delay in activating wit/2.0 will essentially be subtracted from these 8 weeks
+                if (304_896..333_122).contains(&superblock_index) {
                     WIT2_BOOTSTRAP_COMMITTEE
                         .iter()
                         .map(|address| address.parse().expect("Malformed signing committee"))