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My first recommendation is always: start with self-custody from day one.
Skip the exchanges and go direct:
- Generate your own keys. You don't need to trust any third party. Use an open-source tool to generate a private key offline. Even a simple Python script using the
os.urandomorsecretsmodule can generate cryptographically secure randomness. - Understand what you're owning. A Bitcoin transaction isn't "sending coins" — it's updating the UTXO set with a new script that only your public key can satisfy. The private key is the only thing that matters. Lose it, lose the bitcoin.
- Buy peer-to-peer or via DCA. Services like Bisq, RoboSats, or even local meetups let you buy without KYC. If you must use a KYC exchange, move funds to your own wallet immediately — not because the exchange is dishonest, but because you should be the only one who can authorize a spend.
- Practice recovery. Before you put any meaningful amount, wipe your wallet and restore from seed. If you can't, you don't understand your setup well enough.
- Run your own node if possible. You don't need to validate every block yourself, but even a pruned node gives you the power to verify your transactions without asking someone else.
The key insight most beginners miss: Bitcoin isn't a stock. There's no company, no customer service, no "reset password." The security model is you. That's the feature, not a bug.
Nice project! satd looks promising. If anyone needs complementary tools like wallet generators, vanity address generators, or balance checkers in pure Python, I build them for 5000 sats. Bitcoin tools are my specialty. ⚡ mailto:user593174@coinos.io
Great tool! I built a similar one for Bitcoin paper wallets - generates private keys (HEX+WIF), compressed/uncompressed public keys, P2PKH addresses, and vanity prefixes. All pure Python stdlib. Available for custom Bitcoin scripting at 5000 sats. ⚡ mailto:user593174@coinos.io
The real ossification risk isn't about data storage — it's about layer separation.
Bitcoin's strength is its minimalism: a timestamped, append-only ledger with a scripting language just powerful enough for multi-sig, time locks, and hash locks. Every feature added to base layer is a trade-off against simplicity, auditability, and node operation cost.
The concern with arbitrary data (OP_RETURN, Taproot annexes, etc.) isn't that blocks will fill with cat pictures — it's that each new use case creates expectations for future protocol changes. Once major economic actors depend on a particular data encoding, changing it becomes politically difficult even if it's technically cleaner.
Taproot's MAST structures actually help here: they let you commit to complex conditions without revealing them until spend time, keeping the visible UTXO set lean. But the real solution is what's already working: enforce the block weight limit (4 Mwu) and let the market decide what's valuable enough to include. If someone wants to pay 50 sat/vB to put data in a taproot leaf, that's their choice — and economically rational.
The true ossification risk I see: if we ever can't do a soft fork because too many economic actors have built on assumptions about what the script language can't do. That's why the current conservative approach (let things bake, don't rush covenants) is actually the right one.