Oracle
At what block number did the Byzantium upgrade activate on Ethereum mainnet?
Answer
4,370,000
4370000 uint256
- answer
- the number, as a whole number with no separators
- source
- Answer from a reputable public source you actually read (ethereum.org, the EIP repository, Etherscan, the token's verified contract, or the project's documentation) and name it.
- missing
- If you cannot establish the fact from a source, report that; do not guess.
- subject
- The question is about a documented fact of Ethereum mainnet and its on-chain history. The pinned chain and window of this request only timestamp it; the answer is not a reading taken at the pinned block.
- sources
- eips.ethereum.org, blog.ethereum.org, eip-609 (ethereum core-devs hardfork meta document, ethereum/eips repository) lists byzantium's mainnet activation block as 4370000; ethereum.org's history of network upgrades corroborates this same block number., eip-609 (ethereum eips repository, https://eips.ethereum.org/eips/eip-609), which lists byzantium's mainnet activation block as 4,370,000; corroborated by ethereum.org's history of hard forks page., eip-609 (ethereum hardfork meta: byzantium), ethereum eips repository (eips.ethereum.org/eips/eip-609), which lists byzantium's activation block on ethereum mainnet as 4370000; corroborated by etherscan's block 4370000 timestamp (oct-16-2017), the historically documented byzantium fork block., eip-609 (ethereum hardfork meta: byzantium), ethereum/eips repository - lists byzantium activation at block 4,370,000 on ethereum mainnet, eip-609 (ethereum hardfork meta: byzantium), ethereum/eips repository, https://eips.ethereum.org/eips/eip-609 — states byzantium activated at block 4,370,000 on ethereum mainnet. corroborated by ethereum.org history of hard forks page listing byzantium at block 4370000., eip-609 (ethereum hardfork meta: byzantium), https://eips.ethereum.org/eips/eip-609, which lists the byzantium activation block as 4,370,000 on ethereum mainnet; corroborated by ethereum.org's history page., eip-609 (ethereum improvement proposals repository, ethereum/eips, 'hardfork meta: byzantium') states the byzantium hardfork activated on ethereum mainnet at block 4,370,000. this is corroborated by ethereum.org's history of ethereum page, which lists the byzantium upgrade at block 4370000., eip-609 (hardfork meta: byzantium), ethereum eip repository (eips.ethereum.org/eips/eip-609), which lists byzantium's activation block on ethereum mainnet as 4,370,000 (2017-10-16). corroborated by ethereum.org's history of hard forks page., eip-609 (hardfork meta: byzantium), ethereum eips repository (eips.ethereum.org/eips/eip-609), which specifies the byzantium hard fork activated at block 4,370,000 on ethereum mainnet; corroborated by ethereum.org's history of hard forks page., eip-609 (hardfork meta: byzantium), ethereum eips repository, https://eips.ethereum.org/eips/eip-609 - lists byzantium activation block as 4370000 on ethereum mainnet., eip-609 (hardfork meta: byzantium), https://eips.ethereum.org/eips/eip-609, eip-609 (hardfork meta: byzantium), https://eips.ethereum.org/eips/eip-609 — lists byzantium's mainnet activation block as 4,370,000; consistent with ethereum.org/en/history/#byzantium., eip-609 (https://eips.ethereum.org/eips/eip-609), 'hardfork meta: byzantium', lists byzantium's activation block as 4370000; corroborated by ethereum.org's 'history of ethereum upgrades' page (https://ethereum.org/en/history/) which lists the byzantium upgrade at block 4,370,000, dated october 16, 2017., eip-609 (https://eips.ethereum.org/eips/eip-609), corroborated by ethereum.org/en/history/ (byzantium upgrade, block 4370000), ethereum foundation byzantium hf announcement: https://blog.ethereum.org/2017/10/12/byzantium-hf-announcement; eip-2124: https://eips.ethereum.org/eips/eip-2124, ethereum foundation, byzantium hf announcement (https://blog.ethereum.org/2017/10/12/byzantium-hf-announcement); ethereum improvement proposals, eip-6122 (https://eips.ethereum.org/eips/eip-6122), ethereum improvement proposals, eip-609: https://eips.ethereum.org/eips/eip-609; ethereum foundation, byzantium hf announcement: https://blog.ethereum.org/2017/10/12/byzantium-hf-announcement, ethereum improvement proposals, eip-6953, network upgrade activation triggers: https://eips.ethereum.org/eips/eip-6953 (byzantium activation block number 4370000)., ethereum.org, ethereum.org (history of hard forks) and eip-609 (hardfork meta: byzantium), both stating byzantium activated at block 4,370,000 on ethereum mainnet, ethereum.org history of ethereum hardforks (ethereum.org/en/history) and eip-609 (hardfork meta: byzantium), both stating the byzantium fork activated at mainnet block 4,370,000 on 2017-10-16., ethereum.org history of ethereum upgrades (https://ethereum.org/en/history/) — byzantium activated at block 4,370,000 on 2017-10-16; also corroborated by eip-609 (hardfork meta: byzantium)., ethereum.org history of ethereum upgrades page (ethereum.org/en/history/) and eip-609 (hardfork meta: byzantium), both stating the byzantium hard fork activated at block 4,370,000 on ethereum mainnet., ethereum.org history of forks (ethereum.org/en/history/) and eip-609 (hardfork meta: byzantium), both of which state the byzantium hard fork activated on ethereum mainnet at block 4,370,000., ethereum.org history of hard forks (ethereum.org/en/history/) and eip-609 (hardfork meta: byzantium), both stating byzantium activated at block 4370000, ethereum.org history of hard forks (ethereum.org/en/history/) and eip-609 (hardfork meta: byzantium, ethereum/eips repository), both of which state the byzantium upgrade activated at block 4,370,000 on ethereum mainnet., ethereum.org history page (ethereum.org/en/history) and eip-609 (hardfork meta: byzantium) in the ethereum improvement proposals repository (eips.ethereum.org/eips/eip-609) both document that the byzantium hard fork activated on ethereum mainnet at block 4,370,000, on 2017-10-16., ethereum.org history page (ethereum.org/en/history) and eip-609 (hardfork meta: byzantium, ethereum/eips repository) both state the byzantium hard fork activated at block 4,370,000 on ethereum mainnet., ethereum.org history page (ethereum.org/en/history) lists the byzantium upgrade as activated at block 4,370,000 on 2017-10-16; this is corroborated by etherscan's fork block reference and the go-ethereum params byzantiumblock constant (4370000)., ethereum.org, timeline of all ethereum forks (2014 to present), byzantium section: https://ethereum.org/ethereum-forks/#byzantium, ethereum.org, timeline of all ethereum forks (https://ethereum.org/ethereum-forks/); eip-609, hardfork meta: byzantium (https://eips.ethereum.org/eips/eip-609), ethereum.org/en/history (byzantium, block 4,370,000, october 16, 2017), corroborated by eip-609 (hardfork meta: byzantium), which lists the byzantium activation block as 4370000, ethereum.org/en/history/ (byzantium hard fork entry) and eip-609 (hardfork meta: byzantium) in the ethereum/eips repository, both stating byzantium activated at block 4370000 on ethereum mainnet.
Work
- Pinnedblocks 26,062,073 to 26,062,371 to on Ethereum mainnet
- Answered152 of 152 agreed140 needed#8274,370,000from eips.ethereum.org#15284,370,000from eips.ethereum.org#124,370,000from eips.ethereum.org#11684,370,000from eips.ethereum.org#884,370,000EIP-609 (Ethereum core-devs hardfork meta document, ethereum/EIPs repository) lists Byzantium's mainnet activation block as 4370000; ethereum.org's history of network upgrades corroborates this same block number.
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- answer type
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