Bitcoin
A draft BIP would standardise which Bitcoin outputs expose their keys
Published estimates of quantum-exposed supply range from about 25% to over 34%. The author argues the gap is definitional and proposes four levels with a fail-closed rule.
Coin Brief — Crypto news, read from the protocol's own record
Shielded Bitcoin paper proposes Zcash-style private transfers without a fork
Encrypted notes, nullifiers and zero-knowledge proofs would be published on Bitcoin and checked by off-chain replay. How real BTC gets in and out is left to a separate paper.
Open challenge cuts GPU cost of a quantum-safe bitcoin spend to about $67
One week of public optimisation took the QSB construction from roughly $320 to an estimated $67 in compute. StarkWare still calls a soft fork the better long-term answer.
Geth 1.17.5 stops random churn from dropping its most useful mempool peers
CHAMP shields a small set of peers per quality dimension - two of them anchored to transactions that actually reach the chain - while the rest keep churning at the same rate.
The Clearing House picks Quant for its tokenized-deposit network
The US bank-owned operator of RTP and CHIPS says the On-Chain Money network should open to participants in the first half of 2027, with Quant coordinating clearing and settlement.
A post-quantum Lightning proposal would cost nodes ten times the bandwidth
PQLN adds ML-DSA and ML-KEM to Lightning's gossip, transport, invoices and onions without a consensus change. The on-chain parts stay classical, and the author names bandwidth as the real price.
Stream compression cuts an Ethereum node's inbound gossip by a quarter
A research post measured Teku traffic on mainnet: keeping Snappy's history across messages removes repeated topic strings and attestation data, with the same decoder bound.
Zebra 6.4.2 fixes a remote crash and withdraws the two releases before it
The Zcash node's 6.4.0 and 6.4.1 binaries and images are pulled over a malformed-V6-transaction denial of service, two days after 6.4.0 shortened the support window ahead of NU7.
SEC staff: buybacks on functional networks are not managerial promises
New Corporation Finance answers classify liquid staking receipts, define what a receipt is, and draw a line between buybacks on working and unfinished crypto systems. They carry no legal force.
A protocol date is a condition, not a calendar entry
XRPL's Batch lost ten days to one validator vote, Zebra shortened its support window and then withdrew two releases, and Solana's Alpenglow has no mainnet date at all. Plan against the condition.
Alpenglow is live on Solana's devnet, with no mainnet date set
The new consensus protocol targets about 150 ms finality. On the morning of 26 September the Foundation's own dashboard showed devnet finality at 322 ms, and vote transactions gone from blocks.