Bitcoin slipped below $91,000 on Dec. 12, with its 24-hour gain narrowing to 0.7%, HTX market data show. The move reflected a pullback from earlier intraday levels recorded on the HTX platform.

An address labeled "BTC OG Insider Whale" transferred 5,152 BTC, worth approximately $476.68 million, to a new address on Dec. 12, on-chain data show. The funds moved about five minutes before the transfer was reported, BlockBeats said.

Chinese crypto analyst Banmuxia said on Dec. 12 that Bitcoin's daily chart shows a bullish crossover among the MA5, MA10 and MA30, creating a support zone around $90,500–$91,300, BlockBeats reports. For long positions opened near $89,000–$90,000, Banmuxia outlined take-profit levels at $98,000, $103,300 and $112,500, with adjustments based on market conditions. The analyst noted these profit-taking areas are no longer suitable for new long entries due to a low risk-reward profile.

Bitcoin "accumulator" addresses added more than 75,000 BTC between Dec. 1 and Dec. 10, including 40,000 BTC from Dec. 9 to Dec. 10 alone, CryptoQuant analyst DarkFrost said on Dec. 12. These addresses now hold around 315,000 BTC, with accumulation showing little sensitivity to current market conditions. DarkFrost defines "accumulator" addresses as those with no outflows, a minimum BTC purchase in the most recent transaction, at least two inflow events, a minimum total balance, at least one active transaction in the past seven years, and exclusion of known exchange, miner, and smart contract addresses.

Addresses holding between 10,000 and 100,000 BTC have sold or redistributed 36,500 BTC since early December, Glassnode data show. The moved Bitcoin is valued at approximately $3.373 billion.

Blockstream researchers Mikhail Kudinov and Jonas Nick proposed hash-based signatures to protect the $1.8 trillion Bitcoin blockchain from quantum computing threats in a revised paper on Dec. 5, BlockBeats reported on Dec. 12. The scheme's security aligns with Bitcoin's hash functions and is backed by cryptanalysis in NIST's post-quantum standardization process. The researchers estimate pre-2012 Pay-To-Public-Key wallets, including Satoshi Nakamoto's $980 billion holdings, hold about $6,000 billion and would face quantum threats first.

A newly created Bitcoin wallet beginning with the address "bc1qp8" has received 1,900 BTC from Galaxy Digital over the past three days, according to on-chain data compiled by blockchain analytics account Lookonchain. The transferred bitcoin is valued at approximately $175.2 million based on prices at the time of the transactions.

Bitcoin slipped below $92,000 on Dec. 12, with its 24-hour gain narrowing to 0.55%, HTX data show. The cryptocurrency briefly traded under the $92,000 level during intraday trading.