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Bitcoin là mạng lưới mã nguồn mở, phi tập trung dành cho thanh toán ngang hàng và chuyển giao giá trị số. Satoshi Nakamoto giới thiệu ý tưởng này trong sách trắng năm 2008, và mạng lưới bắt đầu hoạt động vào năm 2009. Người tham gia có thể chuyển giá trị mà không cần ngân hàng hay đơn vị thanh toán trung tâm duy trì sổ cái. Blockchain cung cấp lịch sử giao dịch công khai dùng chung, còn giao thức quy định điều kiện chấp nhận giao dịch và khối. BTC là tài sản gốc của mạng lưới, được dùng để thanh toán, chuyển tiền và trả phí giao dịch. Một BTC có thể chia thành 100 triệu satoshi. Ví quản lý khóa và thông tin cần thiết để nhận và chi tiêu BTC; bản thân các đồng tiền được thể hiện trong hồ sơ giao dịch của mạng lưới. Token bọc trên các blockchain khác đại diện cho BTC thông qua cơ chế phát hành và lưu ký riêng, thay vì là BTC gốc trên Bitcoin. Bitcoin sử dụng bằng chứng công việc (PoW). Thợ đào tập hợp giao dịch thành các khối ứng viên và cạnh tranh bằng năng lực tính toán để tạo khối đáp ứng độ khó yêu cầu. Các nút đầy đủ độc lập xác minh giao dịch và khối theo quy tắc đồng thuận, từ chối dữ liệu không hợp lệ ngay cả khi thợ đào tạo ra. Hoạt động đào góp phần xác lập thứ tự giao dịch và làm việc sửa lịch sử trở nên tốn kém; thợ đào không thể tự quyết định các quy tắc mà những người tham gia khác phải chấp nhận. Giao dịch sử dụng đầu ra giao dịch chưa được chi tiêu, gọi là UTXO. Một giao dịch chi tiêu các đầu ra hiện có và tạo đầu ra mới, bao gồm phần tiền thừa trả lại người gửi. Các nút kiểm tra đầu vào vẫn chưa được chi tiêu, điều kiện chi tiêu được đáp ứng và giá trị đầu vào đủ để trang trải đầu ra. Chữ ký số thường được dùng để cho phép chi tiêu. Sau khi được đưa vào khối hợp lệ, giao dịch có thêm xác nhận khi các khối tiếp theo được nối vào, với khoảng thời gian giữa các khối thay đổi. Theo quy tắc đồng thuận của Bitcoin, tổng lượng phát hành bị giới hạn ở 21 triệu BTC. BTC mới đi vào lưu thông thông qua trợ cấp khối, giảm một nửa sau mỗi 210.000 khối cho đến khi phát hành kết thúc. Thợ đào cũng có thể nhận phí giao dịch, khác với số coin mới được phát hành. Lịch phát hành dựa trên chiều cao khối thay vì ngày cố định, giảm dần lượng BTC mới được phát hành khi mạng lưới tiếp tục thêm khối. Bitcoin được dùng để thanh toán cho người bán, chuyển tiền xuyên biên giới và trực tiếp nắm giữ tài sản số. Với hình thức tự lưu ký, người nắm giữ quản lý khóa dùng để ký giao dịch; với dịch vụ lưu ký, nhà cung cấp quản lý khóa thay họ. Sổ cái công khai cho phép theo dõi các khoản chuyển trên chuỗi theo địa chỉ, nhưng chỉ riêng địa chỉ không xác định danh tính ngoài đời của người nắm giữ.

Project news

AnchorWatch obtains Nevada state charter qualification, providing Bitcoin custody services

BlockBeats news, on October 19, according to The Block, AnchorWatch Trust Company officially opened this Monday, becoming a qualified Bitcoin custody institution licensed in Nevada. The company revealed to the media that the Nevada Financial Institutions Division has officially authorized it to provide custody services. Its target clients mainly include trustees, listed companies, trust institutions, and high-net-worth individuals requiring qualified Bitcoin custody services. In terms of fee structure, AnchorWatch adopts a fixed USD rate based on vault size, rather than a percentage of the assets under custody, with a monthly custody fee capped at $10,000. This means that once a client's monthly fee reaches this cap, no additional custody costs will be incurred regardless of additional Bitcoin purchases or asset growth due to appreciation. Regarding key management and custody architecture, AnchorWatch offers institutional clients two different options. In its flagship model, AnchorWatch Trust Company holds the core keys required for qualified custody, while allowing clients, trustees, or executives to hold an additional key themselves. In another distributed custody model, key control is decentralized among multiple parties, jointly managed by AnchorWatch, BitGo located in the United States, and CoinCorner located on the Isle of Man, further reducing single point of failure risk.

"Order Reveal" Why has the BTC buy plan significantly decreased this weekend? The profit-taking psychological price level may warrant further attention

BlockBeats news, on October 19, since the weekend, large BTC accounts have rearranged near-term buybacks, rebound exits, and deep acquisition plans. The over $100 million acquisition plan still active last week was withdrawn over the weekend; another long position significantly lowered its exit target. These large holders' planned purchases seem to be becoming more conservative, while they are willing to exit earlier. According to TradingBeats monitoring, BTC is currently reported at about $82,596. Since October 17, 11 groups of new and still retained key orders total approximately $60.55 million. New buy orders: $75,000 deep buy orders Near-term buy orders are mainly used for short covering. Totaling $6.02 million, two orders are about 0.48% and 0.96% away from the current price respectively (0x5e073, 0xf517). Larger scale buybacks are concentrated at $78,500. Two accounts placed buy orders of about $9.289 million and $7.431 million respectively on Sunday night, totaling about $16.72 million, all single-point full-position buyback plans, approximately 4.96% below the current price (0x6a02, 0x3bb6). New long positions are mainly distributed at lower levels: - $75,000: about $13.528 million. A single new buy order added on Sunday; the corresponding account currently holds no BTC. This is the largest single-point new long position plan this round, about 9.20% below the current price (0xf081). - $75,222–78,888: about $4 million. 88 laddered buy orders, with lower prices having larger single order amounts; about 68% of the amount is concentrated in the lower half of the range; the corresponding account currently holds no BTC (0xaf0f). - $77,500–79,500: about $3 million. 100 nearly equal laddered buy orders, building long positions in batches with about $20–21 spacing (0x051c). New sell orders: $84,000 long position profit-taking 10 new ordinary sell orders between $82,909 and $82,999, totaling about $1.659 million, used to continue adding shorts; the first order is about 0.38% above the current price (0x5e073). Larger sell orders come from long exit plans. At $83,444 and $84,444, about $3.764 million and $3.809 million "reduce only" sell orders were added respectively, totaling about $7.573 million, covering all corresponding long positions. Between $84,305 and $84,460, there are 13 more reduce-long sell orders totaling about $3.836 million. These two plans total about $11.41 million, with the first orders about 1.03% and 2.07% above the current price respectively (0xb1ec, 0x598f). Additionally, one account added 82 "reduce only" sell orders totaling about $4.169 million, planning to exit long positions in batches within two ranges: $84,315–85,347 and $87,033–91,833 (0xe7f3). Early buy orders: $74,700 large acquisitions exist Previous short covering and long building plans still have multiple groups retained: - $80,000: about $8 million. A single "reduce only" buy order created on October 16, currently covering about 25% of the corresponding short position, about 3.14% below the current price (0xc3ed). - $76,202–77,672: about $26.898 million. Six levels of buyback orders covering all corresponding short positions, among which the $76,202 level is about $7.62 million, accounting for 28.3% of the group (0xaeaa). - $75,351: about $9.175 million. A single add-long buy order created on October 10, about 8.77% below the current price (0xdd7a). - $74,252–74,702: about $23.429 million. Two old buy orders consisting of three-level ladder buys and a single-point buy at $74,258, totaling about $15.261 million and $8.168 million respectively, used to build or expand long positions (0x92b7, 0x6646). - $72,350: about $7.235 million. Single-point new long position plan, about 12.40% below the current price (0xfb94). Early sell orders: $86,600 long position profit-taking Between $82,786 and $84,000, 304 ordinary sell orders created on the evening of October 16 are still retained, totaling about $7.808 million, with the first order about 0.23% above the current price, adding shorts in increments of about $4–5, with single order amounts increasing as prices rise (0x4fe2). At higher levels, $86,616 still has about $8.662 million "reduce only" sell orders, covering about 32.1% of the corresponding long positions; $88,861 has about $3.999 million full-position reduce-long sell orders, about 4.87% and 7.59% above the current price respectively (0x0c4a, 0xd5d2).

External wallet transfers are being opened in phases, and Charles Schwab supports eligible customers to transfer in and out Bitcoin and Ethereum

Odaily Planet Daily reports that U.S. brokerage Charles Schwab is gradually opening external wallet transfers for Bitcoin and Ethereum to eligible clients, supporting the transfer of related assets into and out of external wallets. The service scope has expanded beyond merely providing market exposure within investment accounts. Charles Schwab stated that Bitcoin and Ethereum held through its service are not covered by FDIC insurance, and the related crypto assets are not considered insured traditional bank deposits. This service will be rolled out progressively, and the company has discussed expanding supported assets beyond Bitcoin and Ethereum.

Strive CEO posted a picture hinting at the possible disclosure of BTC accumulation data next week

Odaily Planet Daily reports that Strive CEO Matt Cole posted the company's Bitcoin holdings data chart on the X platform, captioned "Now stacking sats with double horsepower," hinting at a possible disclosure of BTC accumulation data next week. This move may be emulating Strategy founder Michael Saylor.

Analyst: Bitcoin MVRV percentile drops below 30, still consistent with accumulation range characteristics

BlockBeats news, on October 18, crypto analyst Darkfost posted that after Bitcoin was resisted near $87,000, the MVRV percentile fell back below 30, entering the transitional phase after market capitulation again. He believes the current valuation still fits the characteristics of an accumulation range. Darkfost explained that MVRV is used to compare Bitcoin's market value with realized value, the latter calculated based on the price at the most recent on-chain movement of each BTC. His method does not simply observe the raw MVRV value but measures the current value's relative position in historical evolution to reduce the impact of Bitcoin's structural changes and market cycles on indicator interpretation, analyzing it within the current market environment. He pointed out that historically, Bitcoin has only been at this valuation level about 25% of the time. Although it has now left the extremely undervalued range that always coincided with market lows in the past, it still fits the characteristics of the historical accumulation range.