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<title>Bitcoin Morse Converter (Prefix-Free with Zero)</title>
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input[type="text"] {
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button {
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code {
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<h1>Bitcoin Morse Converter (Prefix-Free with Zero)</h1>
<div class="section">
<h2>Tutorial: Bitcoin Morse with '0' (Revised)</h2>
<p>This updated "Bitcoin Morse" protocol supports '0' and ensures unambiguous decoding by using prefix-free codes. It encodes strings (like Bitcoin addresses) into numeric-only format using digits 0-9, covering 0-9, A-Z, and a-z (excluding O, I, l).</p>
<h3>Character Set</h3>
<p>Supports 57 characters:</p>
<ul>
<li>Digits: 0-9 (10 characters)</li>
<li>Uppercase: A-H, J-N, P-U, V-Z (24 characters)</li>
<li>Lowercase: a-h, j-n, p-u, v-z (23 characters)</li>
</ul>
<p>Example: <code>04jsRJx8HnKq9jyqfBQKgvvnFy3rNCbc3G</code>.</p>
<h3>Encoding Rules</h3>
<p>Each character has a unique numeric code, designed so no code is a prefix of another:</p>
<ul>
<li><strong>Digits</strong>: 2 digits, start with '1' to separate from letters.</li>
<li><strong>Letters</strong>: Start with '0', vary by length (2, 3, 4, 5 digits) and pattern.</li>
</ul>
<h3>Complete Dictionary</h3>
<p>Here’s every possible character and its Bitcoin Morse code:</p>
<ul class="dictionary">
<li><code>0 → 10</code></li>
<li><code>1 → 11</code></li>
<li><code>2 → 12</code></li>
<li><code>3 → 13</code></li>
<li><code>4 → 14</code></li>
<li><code>5 → 15</code></li>
<li><code>6 → 16</code></li>
<li><code>7 → 17</code></li>
<li><code>8 → 18</code></li>
<li><code>9 → 19</code></li>
<li><code>A → 01</code></li>
<li><code>B → 02</code></li>
<li><code>C → 03</code></li>
<li><code>D → 04</code></li>
<li><code>E → 05</code></li>
<li><code>F → 06</code></li>
<li><code>G → 07</code></li>
<li><code>H → 08</code></li>
<li><code>J → 09</code></li>
<li><code>K → 001</code></li>
<li><code>M → 002</code></li>
<li><code>N → 003</code></li>
<li><code>P → 004</code></li>
<li><code>Q → 005</code></li>
<li><code>R → 006</code></li>
<li><code>S → 007</code></li>
<li><code>T → 008</code></li>
<li><code>U → 009</code></li>
<li><code>V → 0001</code></li>
<li><code>W → 0002</code></li>
<li><code>X → 0003</code></li>
<li><code>Y → 0004</code></li>
<li><code>Z → 0005</code></li>
<li><code>a → 021</code></li>
<li><code>b → 022</code></li>
<li><code>c → 023</code></li>
<li><code>d → 024</code></li>
<li><code>e → 025</code></li>
<li><code>f → 026</code></li>
<li><code>g → 027</code></li>
<li><code>h → 028</code></li>
<li><code>j → 029</code></li>
<li><code>k → 0021</code></li>
<li><code>m → 0022</code></li>
<li><code>n → 0023</code></li>
<li><code>p → 0024</code></li>
<li><code>q → 0025</code></li>
<li><code>r → 0026</code></li>
<li><code>s → 0027</code></li>
<li><code>t → 0028</code></li>
<li><code>u → 0029</code></li>
<li><code>v → 00021</code></li>
<li><code>w → 00022</code></li>
<li><code>x → 00023</code></li>
<li><code>y → 00024</code></li>
<li><code>z → 00025</code></li>
</ul>
<h3>Example</h3>
<p>For <code>0K0</code>:
<ul>
<li>"0" → "10"</li>
<li>"K" → "001"</li>
<li>"0" → "10"</li>
</ul>
Result: <code>1000110</code> (uniquely decodable).
</p>
<p>For <code>04js</code>:
<ul>
<li>"0" → "10"</li>
<li>"4" → "14"</li>
<li>"j" → "029"</li>
<li>"s" → "0027"</li>
</ul>
Result: <code>10140290027</code>.
</p>
<h3>Purpose</h3>
<p>A numeric-only encoding that’s unambiguous, supports '0', and works for Bitcoin addresses or any string with these characters.</p>
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<div class="section">
<h2>Address to Bitcoin Morse</h2>
<label for="bitcoinAddress">Enter Address:</label>
<input type="text" id="bitcoinAddress" placeholder="e.g., 04jsRJx8HnKq9jyqfBQKgvvnFy3rNCbc3G">
<button onclick="toBitcoinMorse()">Convert to Morse</button>
<label for="morseOutput">Bitcoin Morse Result:</label>
<input type="text" id="morseOutput" readonly>
</div>
<div class="section">
<h2>Bitcoin Morse to Address</h2>
<label for="morseInput">Enter Bitcoin Morse:</label>
<input type="text" id="morseInput" placeholder="e.g., 10140290027...">
<button onclick="toBitcoinAddress()">Convert to Address</button>
<label for="addressOutput">Address Result:</label>
<input type="text" id="addressOutput" readonly>
</div>
<script>
// Encoding map for revised Bitcoin Morse
const encodeMap = {
'0': '10', '1': '11', '2': '12', '3': '13', '4': '14', '5': '15', '6': '16', '7': '17', '8': '18', '9': '19',
'A': '01', 'B': '02', 'C': '03', 'D': '04', 'E': '05', 'F': '06', 'G': '07', 'H': '08', 'J': '09',
'K': '001', 'M': '002', 'N': '003', 'P': '004', 'Q': '005', 'R': '006', 'S': '007', 'T': '008', 'U': '009',
'V': '0001', 'W': '0002', 'X': '0003', 'Y': '0004', 'Z': '0005',
'a': '021', 'b': '022', 'c': '023', 'd': '024', 'e': '025', 'f': '026', 'g': '027', 'h': '028', 'j': '029',
'k': '0021', 'm': '0022', 'n': '0023', 'p': '0024', 'q': '0025', 'r': '0026', 's': '0027', 't': '0028', 'u': '0029',
'v': '00021', 'w': '00022', 'x': '00023', 'y': '00024', 'z': '00025'
};
// Reverse map for decoding
const decodeMap = Object.fromEntries(Object.entries(encodeMap).map(([k, v]) => [v, k]));
// Convert address to Bitcoin Morse
function toBitcoinMorse() {
const address = document.getElementById('bitcoinAddress').value.trim();
let morse = '';
for (let char of address) {
if (encodeMap[char]) {
morse += encodeMap[char];
} else {
alert(`Invalid character: ${char} (O, I, l not supported)`);
return;
}
}
document.getElementById('morseOutput').value = morse;
}
// Convert Bitcoin Morse back to address
function toBitcoinAddress() {
const morse = document.getElementById('morseInput').value.trim();
let address = '';
let i = 0;
while (i < morse.length) {
let found = false;
for (let len of [5, 4, 3, 2]) { // Check longest to shortest
const chunk = morse.substr(i, len);
if (decodeMap[chunk]) {
address += decodeMap[chunk];
i += len;
found = true;
break;
}
}
if (!found) {
alert(`Invalid Bitcoin Morse sequence at position ${i}: ${morse.substr(i, 5)}`);
return;
}
}
document.getElementById('addressOutput').value = address;
}
</script>
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