Will Bitcoin replace SHA-256 before 2027?
PM $198.9K
1
1
Will Bitcoin replace SHA-256 before 2027?
PM $198.9K
1
1
Current odds
Snapshot from
As of Oct 27, 2026, 3:00 AM UTC, Yes is priced at 1.7% on Polymarket.
Polymarket
- Yes1.7%
Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.
AI Analysis
Trader mode: Market mechanics, assumptions and risks
PM $198.9K
Reported volume · provider units
1
Saved contracts
0
Same-question pairs
Source snapshot: Oct 27, 2026, 3:00 AM UTC
About This Event
On December 9, Google introduced Willow, a breakthrough state-of-the-art quantum chip. This achievement fueled speculation that Bitcoin's encryption may be vulnerable to quantum computers in the not-so-distant future (see https://www.cryptoglobe.com/latest/2024/12/does-googles-new-quantum-chip-willow-threaten-bitcoin-the-crypto-community-responds/). This market will resolve to "Yes" if Bitcoin stops using SHA-256 by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No." The resolution source will be the Bitcoin blockchain, in addition to a consensus of credible reporting.
This analysis is awaiting a background update, so its prices may be older than the odds above.
Snapshot observed 2026-10-19T06:00:06.076Z. This analysis describes that snapshot and is not a live news update.
What the contract measures
The contract asks whether Bitcoin will stop using SHA-256 before a stated deadline. Its rules say the market "will resolve to 'Yes' if Bitcoin stops using SHA-256 by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to 'No.'" [1] The stated resolution source is "the Bitcoin blockchain, in addition to a consensus of credible reporting." [1] The contract title refers to "before 2027," but the rule text sets the cutoff at 11:59 PM ET on December 31, 2026. Readers should use the rule wording, not the title alone, to judge what counts as a Yes.
The provider lists an end time of 2027-01-01T04:59:00.000Z [1]. This matches 11:59 PM ET on December 31, 2026, so the listed close time and the rule deadline agree in this record. The listed end time is a close time, not a confirmed resolution. The record does not show that any resolution has occurred.
Reading the snapshot
The saved market was observed at 2026-10-19T06:00:06Z and retrieved at 2026-10-19T07:30:27Z. The status was active. The quoted prices were 0.0175 for Yes and 0.9825 for No [1]. These are snapshot prices from that observation time. They are not executable quotes, and they are not verified probabilities. Because the two outcomes sum to 1.0000, the record shows a single binary contract with no separate ask or bid spread.
This sample covers one market from one platform, Polymarket, within one provider event. The coverage record shows one market included out of one total, with no partial sample [1]. Because only one contract appears, there is no comparison with other platforms or other contracts in this snapshot, and no ranking across events.
What remains uncertain
The record does not show why the quoted prices are where they are, and this explanation does not attempt to supply one. It does not show trading volume, liquidity, or the number of participants. The saved market data also does not include a current price after the observation time, so later prices may differ. The record does not establish whether any real-world change to SHA-256 use is planned or underway. The provider's sample warning states that including all saved markets "does not establish that the providers list every possible real-world outcome" [1]. The resolution depends on how the stated resolution source applies to events after the snapshot, which the snapshot cannot confirm.
References
- Polymarket: Will Bitcoin replace SHA-256 before 2027?. Provider data observed 2026-10-19T06:00:06.076Z.
AI-generated analysis based on market data. Not financial advice.
Saved Oct 19, 2026 UTCThis saved content is awaiting a background update. It may contain outdated claims; use the dated market data and provider rules for the latest available information.
Overview
This PredictPedia contract asks whether Bitcoin will stop using SHA-256 by December 31, 2026, 11:59 PM ET. It is listed on Polymarket under the event title "Will Bitcoin replace SHA-256 before 2027?" [1]. The market is categorized as Crypto, and the saved provider record describes its status as active [1]. SHA-256 is the hashing method the contract refers to. The contract's own description links the question to concern about quantum computing. It states that Google introduced its Willow quantum chip on December 9, and that this achievement fueled speculation that Bitcoin's encryption may be vulnerable to quantum computers in the future [1]. The description does not establish that any such vulnerability exists or that any change to Bitcoin's hashing method has been proposed or scheduled. The contract is a question about a future change, not a report of one. At the time of the saved snapshot, the market showed a Yes price of 0.0175 and a No price of 0.9825 [1]. These are snapshot prices, not executable quotes or verified probabilities.
Historical Context
The contract's own description cites Google's December 9 introduction of the Willow quantum chip as the trigger for the public discussion behind the question [1]. A general Wikipedia article on cryptocurrency describes such assets as digital assets that use distributed ledger, or blockchain, technology to enable a secure transaction [2]. That general definition is background only and does not describe any current development in Bitcoin.
Why It Matters
The contract measures a single, specific event: whether Bitcoin stops using SHA-256 before the deadline. Under the stated rules, the market resolves to Yes if that happens by December 31, 2026, 11:59 PM ET, and resolves to No otherwise [1]. The listed end time in the provider record is 2027-01-01T04:59:00Z, which matches that deadline when converted from Eastern Time [1]. The resolution source is the Bitcoin blockchain, together with a consensus of credible reporting [1]. A contract's closing time is not the same as an announced date for any change, and the rules themselves do not identify one.
Snapshot context
The latest published provider snapshot for this topic was observed on 2026-10-19 at 06:00 UTC. It contains listings from Polymarket. Market descriptions and listed closing times define the contracts; they do not establish that the real-world outcome has occurred. This article does not include a separately verified news update. [1]
Frequently Asked Questions
What event would make this market resolve to Yes?
The market resolves to Yes if Bitcoin stops using SHA-256 by December 31, 2026, 11:59 PM ET [1].
What evidence will be used to decide the outcome?
The stated resolution source is the Bitcoin blockchain, in addition to a consensus of credible reporting [1].
Why is quantum computing mentioned in the contract?
The contract description says Google's Willow chip fueled speculation that Bitcoin's encryption may be vulnerable to quantum computers in the not-so-distant future [1]. The description presents this as speculation, not as a confirmed threat.
Does a low Yes price mean the outcome is unlikely?
A price is only a snapshot of the market at one time and is not a verified probability [1]. The available record does not explain why the price is where it is.
AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.
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