Set Protocol Upgrade heights for CERES

[hanssv]

TESTNET

Starting point: 10/4 at 9:30 CEST: 933010
Hard Fork: 24/4 at 10:30 CEST: 933010 + 14 * 20 * 24 + 20 = 939750

MAINNET

Starting point: 10/4 at 9:30 CEST: 928760
Hard Fork: 7/5 at 11:00 CEST: 928760 + 27 * 20 * 24 + 30 = 941750

This PR is supported by the Æternity Foundation

[dincho]

Could you also add estimated dates please

[dincho]

Testnet:

#!/bin/bash

BASE_BLOCK=933010
BASE_TS=$(($(curl -s https://testnet.aeternity.io/v3/key-blocks/height/$BASE_BLOCK | jq '.time')/1000))
echo "Base block datetime:" $(date -jur $BASE_TS)

TARGET_TS=$(date -ju -f "%Y-%m-%d %H:%M:%S" '2024-04-24 08:30:00' +%s)
echo "Target timestamp:" $TARGET_TS

OFFSET_TS=$(($TARGET_TS-$BASE_TS))
BLOCKTIME_TS=180
OFFSET_BLOCKS=$(($OFFSET_TS/$BLOCKTIME_TS))
echo "Offset blocks:" $OFFSET_BLOCKS
echo "Target block:" $(($BASE_BLOCK + $OFFSET_BLOCKS))

Output:

Base block datetime: Wed Apr 10 07:35:27 UTC 2024
Target timestamp: 1713947400
Offset blocks: 6738
Target block: 939748

Mainnet:

#!/bin/bash

BASE_BLOCK=928760
BASE_TS=$(($(curl -s https://mainnet.aeternity.io/v3/key-blocks/height/$BASE_BLOCK | jq '.time')/1000))
echo "Base block datetime:" $(date -jur $BASE_TS)

TARGET_TS=$(date -ju -f "%Y-%m-%d %H:%M:%S" '2024-05-07 09:00:00' +%s)
echo "Target timestamp:" $TARGET_TS

OFFSET_TS=$(($TARGET_TS-$BASE_TS))
BLOCKTIME_TS=180
OFFSET_BLOCKS=$(($OFFSET_TS/$BLOCKTIME_TS))
echo "Offset blocks:" $OFFSET_BLOCKS
echo "Target block:" $(($BASE_BLOCK + $OFFSET_BLOCKS))

Output:

Base block datetime: Wed Apr 10 07:32:12 UTC 2024
Target timestamp: 1715072400
Offset blocks: 12989
Target block: 941749

[dincho]

Mainnet from current block is 41 blocks off already (2h), maybe we should tune a bit.

Base block datetime: Thu Apr 18 11:18:41 UTC 2024
Target timestamp: 1715072400
Offset blocks: 9073
Target block: 941708

But testnet is fine:

Base block datetime: Thu Apr 18 11:34:57 UTC 2024
Target timestamp: 1713949200
Offset blocks: 2828
Target block: 939751

[hanssv]

Let me adjust to 941700 for mainnet?