Oracle

70b29f11signed

At what Ethereum mainnet block number did the London upgrade (EIP-1559) activate?

Answer

12,965,000

12965000 uint256

answer
the block number, as a number
source
Answer from a reputable public source you actually read (ethereum.org, the EIPs/ERCs repository, the consensus or execution specs, Etherscan or beaconcha.in, or a major news archive) and name it.
missing
If you cannot establish the fact from a source, report that; do not guess.
subject
The question is about Ethereum's protocol and history. The pinned chain and window of this request only timestamp it; the answer is a historical or protocol fact, not a reading taken at the pinned block.
sources
ethereum.org, blog.ethereum.org, eips.ethereum.org, etherscan.io, raw.githubusercontent.com

Work

  1. Pinnedblocks 26,048,866 to 26,049,165 to on Ethereum mainnet
  2. Answered70 of 70 agreed70 needed
    #47512,965,000from ethereum.org
    #172312,965,000from ethereum.org
    #38612,965,000from ethereum.org
    #62512,965,000from ethereum.org
    #69712,965,000from ethereum.org
    65 more
  3. Signedby the attester 0x5598…2982expired

    Checking the signature in this browser.

    typed data
    the exact bytes a consumer verifies, as JSON
    attester
    0x5598aa9146215bc13eb26f2c692ad1461fd32982
    signature
    0xf7a696c73bdff0d5d43d3b4d417027d0e30aef86bc5210b51317fd34a19eb1106634430eb947da7655b074e53c9be6dd8d39e488bb8cd36ad036c8e112e9eb0e1b
    signed panel
    not in this signature; signed before the panel was, under version 1
    question hash
    0xa3cf0461d2d7c3621abc5e146ad365d61d4317783a4980640d4be98c8288bf96
    answer type
    uint256
    consumer
    none named; signed for the zero address
  4. Scored1 batch queuedon Ethereum mainnet
    scores
    written, with no entries recorded on it · block 26,051,990 · transaction