As ProductShare is deploying on multiple blockchain networks, here are the deployer addresses and corresponding chain IDs:

0x8cb6ba61a0E3Aba2261A12b88726d913D6FbE56, Ethereum (chain_id: 1)
0x8cb6ba61a0E3Aba2261A12b88726d913D6FbE56
Optimism (chain_id: 10)
0xcdFAE3698dE3138aC85B0b4A59C1418E335780ee,  Arbitrum (chain_id: 42161)
