Cohort 3 of the Bitcoin School Kenya Diploma, powered by @MyFirstBitcoin_, has received 38 applications in the past 24 hours! enroll >>> https://forms.gle/rWGNUTpp1mGwV5Wt8 x profile >>>
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Bitcoin School Kenya (@BitcoinSchoolKe) on X
Cohort 3 of the Bitcoin School Kenya Diploma, powered by @MyFirstBitcoin_, has received 38 applications in the past 24 hours!
 class >>> t.me/bitcoinschoolkenya image
I don't have enough of God,Time & Bitcoin. when this changes I will be with the Father.
1. 21 Million Supply Limit Bitcoin’s total supply is capped at 21 million BTC. This comes from the block reward halving schedule: Initial block reward: 50 BTC Halving every 210,000 blocks (~4 years) Total BTC = sum of geometric series: total_btc = 0 block_reward = 50 halving_interval = 210000 while block_reward > 0: total_btc += block_reward * halving_interval block_reward /= 2 print(total_btc) # Should output 21000000 2. Block Size Limit Originally, Bitcoin had a 1 MB block size limit (set by Satoshi). Transactions in a block cannot exceed this limit. MAX_BLOCK_SIZE = 1_000_000 # bytes def is_block_valid(block): return block.size <= MAX_BLOCK_SIZE 3. Difficulty Adjustment Bitcoin adjusts the mining difficulty every 2016 blocks (~2 weeks) to keep the block interval ~10 minutes. Formula: \text{New Difficulty} = \text{Old Difficulty} \times \frac{\text{Actual Time of Last 2016 Blocks}}{20160 \text{ minutes}} If blocks came too fast β†’ difficulty ↑ If blocks came too slow β†’ difficulty ↓ def adjust_difficulty(prev_difficulty, actual_time_seconds): target_time = 2016 * 10 * 60 # 2016 blocks * 10 minutes per block new_difficulty = prev_difficulty * (actual_time_seconds / target_time) return new_difficulty 4. Block Interval (~10 minutes) Bitcoin targets a 10-minute interval between blocks. This is enforced indirectly via mining difficulty: miners must solve Proof-of-Work (PoW) hashes under the target. Formula for target hash: \text{hash} \leq \text{target} import hashlib def mine_block(data, target): nonce = 0 while True: hash_result = hashlib.sha256((data + str(nonce)).encode()).hexdigest() if int(hash_result, 16) <= target: return nonce, hash_result nonce += 1 5. Consensus Rules for Valid Transactions A transaction is valid if it meets Bitcoin’s rules: 1. Inputs reference unspent outputs (UTXOs) 2. Input amounts β‰₯ output amounts 3. Signatures are valid 4. ScriptPubKey conditions satisfied 5. No double-spending def is_tx_valid(tx, utxos): input_sum = 0 output_sum = 0 for inp in tx.inputs: if inp.utxo not in utxos: return False # input does not exist if not verify_signature(inp.signature, inp.utxo.pubkey): return False # invalid signature input_sum += inp.utxo.amount for out in tx.outputs: output_sum += out.amount if input_sum < output_sum: return False # trying to create coins out of nothing return True
If consensus fails, Bitcoin loses integrity.
It's 5 YEARS of #Bitcoin stacking Self-audited every 10 minutes. No bank manager, no government oversight, no middlemen. Just pure, unstoppable code securing my future. Am helping more people achieve this through my projects @btcnairobi @NEWBAPP . Donate and Give coinos.io/martinmutonga 🧑 image