Step 1: Determine the UTF-8 encoding bit layout
The character has the Unicode code point U+0001. In UTF-8, it is encoded using 1 byte because its codepoint is in the range of
0x0000to0x007f.
Therefore we know that the UTF-8 encoding will be done over 7 bits within the final 8 bits and that it will have the format:0xxxxxxx
Where thexare the payload bits.UTF-8 Encoding bit layout by codepoint range Codepoint Range Bytes Bit pattern Payload length U+0000 - U+007F 1 0xxxxxxx 7 bits U+0080 - U+07FF 2 110xxxxx 10xxxxxx 11 bits U+0800 - U+FFFF 3 1110xxxx 10xxxxxx 10xxxxxx 16 bits U+10000 - U+10FFFF 4 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 21 bits Step 2: Obtain the payload bits:
Convert the hexadecimal code point U+0001 to binary:
00000001. Those are the payload bits.Step 3: Fill in the bits to match the bit pattern:
Obtain the final bytes by arranging the paylod bits to match the bit layout:
00000001
<control>·U+0001
Character Information
Code Point
U+0001
HEX
0001
Unicode Plane
Basic Multilingual Plane
Category
Control
Character Representations
Click elements to copy| Encoding | Hex | Binary |
|---|---|---|
| UTF8 | 01 | 00000001 |
| UTF16 (big Endian) | 00 01 | 00000000 00000001 |
| UTF16 (little Endian) | 01 00 | 00000001 00000000 |
| UTF32 (big Endian) | 00 00 00 01 | 00000000 00000000 00000000 00000001 |
| UTF32 (little Endian) | 01 00 00 00 | 00000001 00000000 00000000 00000000 |
HTML Entity

URI Encoded
%01
Description
The Unicode character U+0001, also known as START OF HEADING (SOH), serves as a vital non-printing control character in digital text communication, particularly in EBCDIC, ASCII, and binary-coded decimal (BCD) formats. SOH signifies the start of a text block or data transmission, ensuring efficient transfer of information between devices, especially in early computer systems. Although it is non-printable and invisible to users, its role has been instrumental in facilitating digital communication without complex encoding schemes. The use of SOH has declined with modern computing due to advanced encoding methods, but its historical significance remains in the Basic Latin Unicode block, a fundamental component of Unicode that encompasses essential characters spanning from U+0000 to U+007F. This range includes various control codes and special symbols, which are vital for programming languages, text documents, and numerous applications across different platforms and devices.
How to type the symbol on Windows
Hold Alt and type 0001 on the numpad. Or use Character Map.