Oracle
At what block height did Bitcoin's fourth block subsidy halving take effect?
Answer
840,000
840000 uint256
- answer
- the Bitcoin mainnet block height, as a number
- source
- Answer from a reputable public source you actually read (Bitcoin wiki, bitcoin.org, the BIPs repository, a Bitcoin block explorer, 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 the Bitcoin network and its history. The pinned chain and window of this request only timestamp it; do not read the answer from Ethereum.
- sources
- en.bitcoin.it, bitcoin.org, blockstream.info, mempool.space
Work
- Pinnedblocks 26,047,887 to 26,048,185 to on Ethereum mainnet
- Answered52 of 52 agreed49 needed#1401840,000from en.bitcoin.it#735840,000from en.bitcoin.it#475840,000from en.bitcoin.it#1540840,000from en.bitcoin.it#294840,000from en.bitcoin.it
47 more
Signedby the attester 0x5598…2982expired
Checking the signature in this browser.
- typed data
- the exact bytes a consumer verifies, as JSON
- attester
- 0x5598aa9146215bc13eb26f2c692ad1461fd32982
- signature
- 0xbfabb6243799335f706a152fe947ebaa76abd268e9eddf1519140a9a55110e3d6c820595baf6d16388fddba5f13d1c91b19cc1f95c3d17a02fdc98e0b3b98db61c
- signed panel
- not in this signature; signed before the panel was, under version 1
- question hash
- 0x6a1729d3f6a242314a8942c469ef6c9138d5784b76a94f3211ab89bf63b15558
- answer type
- uint256
- consumer
- none named; signed for the zero address
Scored1 batch queuedon Ethereum mainnet
- scores
- written, with no entries recorded on it · block 26,051,885 · transaction