Topic
SolanaIntermediateThe priority fee is CU limit × CU price in micro-lamports, on top of 5,000 lamports per signature. Simulate to size the limit, price from recent fees on the accounts you write, and never request 1.4M by default.
#gas-&-fees#performance#transactions
BitcoinIntermediateOrdinals number every sat and track it first-in-first-out; inscriptions put files in Taproot witness data on a sat; Runes are UTXO-based tokens in OP_RETURN. Indexers, not nodes, interpret all of them.
#nfts#tokens#transactions
ZcashIntermediateTransparent ZEC works like Bitcoin; shielded Sapling and Orchard notes hide sender, receiver and amount with zk-SNARKs. Stay fully shielded: crossing pools or linking t-addresses leaks amounts and identity.
#privacy#transactions#wallets
MoneroIntermediateRing signatures (CLSAG, 16 members) hide which output is spent, one-time addresses hide the receiver, and RingCT commitments with Bulletproofs+ hide amounts. Metadata, timing and exchanges still leak.
#cryptography#privacy#transactions
LitecoinBeginnerLitecoin is Bitcoin's code with Scrypt proof of work, 2.5-minute blocks and an 84M supply, plus opt-in MWEB privacy and its own address prefixes (L, M, ltc1). Confirmations, fees and libraries need small adjustments.
#basics#mining#privacy
PolygonAdvancedStore block hashes, verify each block's parentHash, and on mismatch roll back to the common ancestor and re-index. Fetch logs by block hash and act irreversibly only on finalized blocks.
#indexing#nodes#transactions
GeneralIntermediateOn Bitcoin, scale confirmation depth with the amount at risk, since finality is probabilistic. On Ethereum, wait for the finalized checkpoint. On rollups, wait for the batch to be final on L1.
#consensus#transactions
EthereumBeginnerIt's usually a max fee below the base fee, a low tip, or an earlier stuck nonce. Speed up by resending with the same nonce and higher fees; cancel by sending 0 ETH to yourself with that nonce.
#gas-&-fees#transactions#troubleshooting
BitcoinIntermediateA stuck transaction pays too low a feerate. The sender can replace it with a higher-fee version (RBF), or anyone with an output can spend it in a high-fee child so the package gets mined (CPFP).
#transactions#troubleshooting
GeneralBeginnerBitcoin tracks unspent outputs and wallets compute balances, with implicit fees and change outputs. Ethereum stores a balance and nonce per account, so nonce management replaces coin selection.
#basics#transactions
SolanaIntermediateFetch the blockhash at confirmed commitment right before signing, add a priority fee, and rebroadcast the same signed bytes until confirmed or past lastValidBlockHeight; only then re-sign.
#transactions#troubleshooting
