1+ #! /bin/bash
2+ set -euo pipefail
3+
4+ # Configuration
5+ RPC1=" http://localhost:8547"
6+ RPC2=" http://localhost:8647"
7+
8+ function rpc_call() {
9+ local endpoint=$1
10+ local method=$2
11+ local params=$3
12+ curl -s -X POST \
13+ -H " Content-Type: application/json"
14+ -d " {\" jsonrpc\" :\" 2.0\" ,\" method\" :\" $method \" ,\" params\" :$params ,\" id\" :1}"
15+ $endpoint
16+ }
17+
18+ function get_latest_block() {
19+ local response=$( rpc_call $RPC1 " eth_blockNumber" " []" )
20+ local block_hex=$( echo " $response " | jq -r .result)
21+ printf " %d" $(( block_hex))
22+ }
23+
24+ function verify_block() {
25+ local block_num=$1
26+ local block_hex=$( printf " 0x%x" $block_num )
27+
28+ echo -n " Verifying block $block_num (0x${block_hex# 0x} )..."
29+ echo
30+
31+ block1=$( rpc_call $RPC1 " eth_getBlockByNumber" " [\" $block_hex \" , true]" )
32+ block2=$( rpc_call $RPC2 " eth_getBlockByNumber" " [\" $block_hex \" , true]" )
33+
34+ if [ " $( echo " $block1 " | jq -r .result) " == " null" || [ " $( echo " $block2 " | jq -r .result) " == " null" ; then
35+ echo " ❌ Block not found on one or both endpoints!"
36+ return 1
37+ fi
38+
39+ hash1=$( echo " $block1 " | jq -r .result.hash)
40+ hash2=$( echo " $block2 " | jq -r .result.hash)
41+
42+ if [ " $hash1 " != " $hash2 " ; then
43+ echo " ❌ Hash mismatch! $RPC1 : $hash1 , $RPC2 : $hash2 "
44+ return 1
45+ fi
46+
47+ tx_count=$( echo " $block1 " | jq -r ' .result.transactions | length' )
48+ echo -n " $tx_count tx..."
49+ echo
50+
51+ for (( i= 0 ; i< tx_count; i++ )) ; do
52+ tx_hash1=$( echo " $block1 " | jq -r .result.transactions[$i ].hash)
53+ tx_hash2=$( echo " $block2 " | jq -r .result.transactions[$i ].hash)
54+
55+ # Verify transaction order and hash match
56+ if [ " $tx_hash1 " != " $tx_hash2 " ; then
57+ echo " ❌ Transaction order mismatch at position $i !"
58+ echo " $RPC1 : $tx_hash1 "
59+ echo " $RPC2 : $tx_hash2 "
60+ return 1
61+ fi
62+
63+ tx1=$( rpc_call $RPC1 " eth_getTransactionByHash" " [\" $tx_hash1 \" ]" )
64+ tx2=$( rpc_call $RPC2 " eth_getTransactionByHash" " [\" $tx_hash2 \" ]" )
65+
66+ if [ " $tx1 " != " $tx2 " ; then
67+ echo " ❌ Tx content mismatch for $tx_hash1 !"
68+ return 1
69+ fi
70+ printf " ✅ Tx content match for $tx_hash1 !"
71+ echo
72+ done
73+ echo
74+ return 0
75+ }
76+
77+ echo " === Starting Chain Verification ==="
78+ latest_block=$( get_latest_block)
79+ echo " Latest block: $latest_block "
80+
81+ for (( block= 0 ; block<= latest_block; block++ )) ; do
82+ if ! verify_block $block ; then
83+ echo " ❌ Failed for block $block "
84+ exit 1
85+ fi
86+ done
87+
88+ echo " === Verification Complete ==="
89+ echo " Successfully verified $(( latest_block+ 1 )) "
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