Upcoming relay data API update: adding `timestamp_ms` to `builder_blocks_received`

Bids in the builder_blocks_received data API should include timestamps in milliseconds. Rather than breaking the previous unix second timestamp, we’ll add a new field timestamp_ms:

{
    "slot": "4153442",
    "parent_hash": "0x167c7f7c7b8f402a8f6a6e3364b2ce7f94e2e9322daa171995a9653f60628467",
    "block_hash": "0x52e8986bb0bb7a3d0985c109d00bae73ab490371cce46733391410fc6c113a60",
    "builder_pubkey": "0xa8575cb8de4a336109f2587145a8a2215bbf9e7124d8bba98bb2069f7a83285d6a2185be3a55ffbc82847cc574c01ebe",
    "proposer_pubkey": "0xb5d69d1a776cd741ad9ee8c4f8487923b422100b4d9be3f0f2e270d2385b1ca1b284c73cb38137cb287305e99a7473e0",
    "proposer_fee_recipient": "0x0000000000000000000000000000000000011111",
    "gas_limit": "30000000",
    "gas_used": "29966286",
    "value": "1072864972455703463",
    "num_tx": "110",
    "block_number": "7807902",
    "timestamp": "1666349304",
    "timestamp_ms": "1666349304804"
}

The PR: add millisecond timestamp to builder bids by metachris · Pull Request #212 · flashbots/mev-boost-relay · GitHub

Deployed to Goerli and Sepolia: