https://coinbrief.org/ Crypto news, read from the protocol's own record en Sun, 27 Sep 2026 19:51:09 +0100 https://coinbrief.org/news/bitcoin/draft-bip-output-public-key-exposure-classification/ https://coinbrief.org/news/bitcoin/draft-bip-output-public-key-exposure-classification/ Sun, 27 Sep 2026 19:51:09 +0100 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. https://coinbrief.org/news/ethereum/erigon-3-7-parallel-commitment-persisted-receipts/ https://coinbrief.org/news/ethereum/erigon-3-7-parallel-commitment-persisted-receipts/ Sun, 27 Sep 2026 19:51:09 +0100 The release schedules Glamsterdam on Sepolia for 6 October, requires x86-64-v2 CPUs, drops Polygon support flags and makes null JSON-RPC arguments an error, matching geth. https://coinbrief.org/news/solana/simd-0670-invoke-signed-v2-cuts-cpi-overhead/ https://coinbrief.org/news/solana/simd-0670-invoke-signed-v2-cuts-cpi-overhead/ Sun, 27 Sep 2026 19:51:09 +0100 Programs would pass each account as a 4-byte index and flags instead of 90 bytes of metadata. The proposal from Anza's febo follows a discussion that settled on index-based accounts. https://coinbrief.org/news/xrp/xls-96-confidentiality-rules-out-transfer-fees/ https://coinbrief.org/news/xrp/xls-96-confidentiality-rules-out-transfer-fees/ Sun, 27 Sep 2026 19:51:09 +0100 A Devnet test of XLS-96 shows both directions rejected, and the confidentiality flag cannot be cleared. The author asks whether flat fees, or fees at the conversion boundary, could work. https://coinbrief.org/news/altcoins/aptos-node-1-49-1-block-stm-v2-default/ https://coinbrief.org/news/altcoins/aptos-node-1-49-1-block-stm-v2-default/ Sun, 27 Sep 2026 19:51:09 +0100 The hotfix release also bumps the gas schedule to version 49, decouples the encryption round from the consensus round and excludes retryable encrypted transactions from execution. https://coinbrief.org/news/analysis/choices-you-cannot-take-back/ https://coinbrief.org/news/analysis/choices-you-cannot-take-back/ Sun, 27 Sep 2026 19:51:09 +0100 An XRPL confidentiality flag that forbids fees forever, an Erigon receipt setting fixed at node creation, and a Bitcoin draft that fails closed. Irreversibility is a design parameter. https://coinbrief.org/news/ibm-digital-asset-haven-swift-ledger-on-premises/ https://coinbrief.org/news/ibm-digital-asset-haven-swift-ledger-on-premises/ Sun, 27 Sep 2026 19:51:08 +0100 Banks can instruct tokenised deposit transfers on Swift's shared ledger with ISO 20022 messages, and run Digital Asset Haven on IBM Z or LinuxONE without the public cloud. https://coinbrief.org/news/regulation/sixth-circuit-kalshi-states-can-regulate-sports-contracts/ https://coinbrief.org/news/regulation/sixth-circuit-kalshi-states-can-regulate-sports-contracts/ Sun, 27 Sep 2026 19:51:08 +0100 The court held Kalshi had not shown its sports-event contracts are swaps under CFTC exclusive jurisdiction, and that the Commodity Exchange Act would not preempt state law even if they were. https://coinbrief.org/news/altcoins/robonomics-sensors-sign-transactions-without-metadata/ https://coinbrief.org/news/altcoins/robonomics-sensors-sign-transactions-without-metadata/ Sun, 27 Sep 2026 11:40:46 +0100 The parachain's design turns runtime metadata into generated C code at build time and fingerprints each firmware's calls, so a runtime upgrade shows which devices still work. Most of it is not yet written. https://coinbrief.org/news/xrp/xrpld-3-4-1-emergency-release-fixbatchv1-2/ https://coinbrief.org/news/xrp/xrpld-3-4-1-emergency-release-fixbatchv1-2/ Sun, 27 Sep 2026 11:40:18 +0100 The release adds fixBatchV1_2, which rejects Batch inner transactions carried by the wrong wrapper, plus payment-engine hardening. Source code is withheld until a retrospective. https://coinbrief.org/news/regulation/cftc-faq-tokenized-customer-funds-onchain-records/ https://coinbrief.org/news/regulation/cftc-faq-tokenized-customer-funds-onchain-records/ Sun, 27 Sep 2026 11:40:18 +0100 Updated FAQs say FCMs and clearing houses may invest customer funds in tokenized forms of permitted assets, and that recordkeeping rules are technology neutral - with conditions for public chains. https://coinbrief.org/news/analysis/sponsorship-reserve-exit-trilemma/ https://coinbrief.org/news/analysis/sponsorship-reserve-exit-trilemma/ Sun, 27 Sep 2026 11:40:18 +0100 An XRPL disclosure on sponsored reserves names a trilemma: free exit, always-backed objects and zero-XRP users cannot all hold. Stellar reached the same answer years ago. https://coinbrief.org/news/vitalik-cryptographic-world-computer/ https://coinbrief.org/news/vitalik-cryptographic-world-computer/ Sun, 27 Sep 2026 11:40:17 +0100 In a new essay he argues that verification, consensus and block construction are all changing, and that Hegota, the fork planned for next year, is likely Ethereum's last normal one. https://coinbrief.org/news/bitcoin/eclair-0-14-fixes-two-peer-dos-bugs/ https://coinbrief.org/news/bitcoin/eclair-0-14-fixes-two-peer-dos-bugs/ Sun, 27 Sep 2026 11:40:17 +0100 One came from parsing feature bits one at a time, the other from zlib channel queries BOLT 7 retired four years ago. A fuzzer found the first, AI-assisted variant analysis the second. https://coinbrief.org/news/ethereum/geth-1-17-6-amsterdam-sepolia-october-6/ https://coinbrief.org/news/ethereum/geth-1-17-6-amsterdam-sepolia-october-6/ Sun, 27 Sep 2026 11:40:17 +0100 Sepolia operators must upgrade before the fork. The release also removes Holesky, drops Go 1.24, and adds parallel block execution driven by block-level access lists. https://coinbrief.org/news/solana/project-harmonia-allfunds-tokenized-funds-rfp/ https://coinbrief.org/news/solana/project-harmonia-allfunds-tokenized-funds-rfp/ Sun, 27 Sep 2026 11:40:17 +0100 The programme links Allfunds' distribution network of more than 3,300 managers with funds on Solana. Track A takes live funds, Track B funds in development, and there are no admission fees. https://coinbrief.org/news/solana/firedancer-v26-09-4-memory-footprint/ https://coinbrief.org/news/solana/firedancer-v26-09-4-memory-footprint/ Sat, 26 Sep 2026 19:56:37 +0100 The mainnet-ready release adds a kernel-bypass driver for Mellanox NICs and Solana 4.3 features, and renames snapshot settings - operators must re-run configure after upgrading. https://coinbrief.org/news/xrp/bitget-stolen-xrp-cannot-be-frozen/ https://coinbrief.org/news/xrp/bitget-stolen-xrp-cannot-be-frozen/ Sat, 26 Sep 2026 19:56:37 +0100 XRPL freezes apply only to tokens issuers create, not to the native asset. About 54 million of 103 million stolen XRP had left the attacker's first wallets by Saturday midday. https://coinbrief.org/news/altcoins/sui-mainnet-1-80-1-protocol-137/ https://coinbrief.org/news/altcoins/sui-mainnet-1-80-1-protocol-137/ Sat, 26 Sep 2026 19:56:37 +0100 Cheaper range proofs, a gas change for constant-heavy Move code, earlier rejection of malformed transactions, and an opt-in pool that lets consensus pull transactions by gas price. https://coinbrief.org/news/regulation/cftc-charges-cash-fx-950-million/ https://coinbrief.org/news/regulation/cftc-charges-cash-fx-950-million/ Sat, 26 Sep 2026 19:56:37 +0100 The complaint says a multilevel marketing operation promised up to 15% a week from AI-driven forex trading, traded little, and paid earlier participants with later money. Losses are put at $406 million. https://coinbrief.org/news/analysis/where-the-rules-are-enforced/ https://coinbrief.org/news/analysis/where-the-rules-are-enforced/ Sat, 26 Sep 2026 19:56:37 +0100 A private-transfer design checked off-chain, a quantum-safe spend that must bypass the mempool, XRP no one can freeze, and a geth change that trusts only on-chain outcomes. Each moves or relies on the enforcement point. https://coinbrief.org/news/shielded-bitcoin-paper-no-consensus-change/ https://coinbrief.org/news/shielded-bitcoin-paper-no-consensus-change/ Sat, 26 Sep 2026 19:56:36 +0100 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. https://coinbrief.org/news/bitcoin/quantum-safe-bitcoin-challenge-cost-67/ https://coinbrief.org/news/bitcoin/quantum-safe-bitcoin-challenge-cost-67/ Sat, 26 Sep 2026 19:56:36 +0100 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. https://coinbrief.org/news/ethereum/geth-champ-protects-useful-mempool-peers/ https://coinbrief.org/news/ethereum/geth-champ-protects-useful-mempool-peers/ Sat, 26 Sep 2026 19:56:36 +0100 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. https://coinbrief.org/news/clearing-house-picks-quant-tokenized-deposits/ https://coinbrief.org/news/clearing-house-picks-quant-tokenized-deposits/ Sat, 26 Sep 2026 10:48:29 +0100 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. https://coinbrief.org/news/bitcoin/pqln-post-quantum-lightning-proposal/ https://coinbrief.org/news/bitcoin/pqln-post-quantum-lightning-proposal/ Sat, 26 Sep 2026 10:48:29 +0100 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. https://coinbrief.org/news/ethereum/stream-compressed-gossip-ethereum/ https://coinbrief.org/news/ethereum/stream-compressed-gossip-ethereum/ Sat, 26 Sep 2026 10:48:29 +0100 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. https://coinbrief.org/news/altcoins/zebra-6-4-2-withdraws-6-4-0-6-4-1/ https://coinbrief.org/news/altcoins/zebra-6-4-2-withdraws-6-4-0-6-4-1/ Sat, 26 Sep 2026 10:48:29 +0100 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. https://coinbrief.org/news/regulation/sec-staff-faq-buybacks-staking-receipts/ https://coinbrief.org/news/regulation/sec-staff-faq-buybacks-staking-receipts/ Sat, 26 Sep 2026 10:48:29 +0100 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. https://coinbrief.org/news/analysis/a-protocol-date-is-a-condition-not-a-calendar/ https://coinbrief.org/news/analysis/a-protocol-date-is-a-condition-not-a-calendar/ Sat, 26 Sep 2026 10:48:29 +0100 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. https://coinbrief.org/news/solana/alpenglow-active-on-devnet-and-testnet/ https://coinbrief.org/news/solana/alpenglow-active-on-devnet-and-testnet/ Sat, 26 Sep 2026 10:48:28 +0100 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. https://coinbrief.org/news/xrp/xrpl-batch-activation-reset-october-9/ https://coinbrief.org/news/xrp/xrpl-batch-activation-reset-october-9/ Sat, 26 Sep 2026 10:48:28 +0100 BatchV1_1 briefly fell below 80% validator support, which wipes the accumulated time. The ledger shows the new majority from 25 September; Permission Delegation reset too. https://coinbrief.org/news/xrp/rewrite-closed-ended-vault-as-nested-patches-636/ https://coinbrief.org/news/xrp/rewrite-closed-ended-vault-as-nested-patches-636/ Fri, 25 Sep 2026 22:54:47 +0100 Eight files, 453 lines added and 620 removed. A standalone draft becomes nested patches against the specs it modifies, with Test Plan sections added. https://coinbrief.org/news/solana/amend-simd-0376-ed25519-zebra-verification-616/ https://coinbrief.org/news/solana/amend-simd-0376-ed25519-zebra-verification-616/ Fri, 25 Sep 2026 22:52:02 +0100 SIMD-0376 now specifies the cofactored equation from Taming the many EdDSAs plus explicit rejection of non-canonical encodings and small-order A and R - because ZIP-215 alone accepts the all-zero pubkey. https://coinbrief.org/news/bitcoin/merge-pull-request-2304-from-bruce039-bip375-sync-dleq/ https://coinbrief.org/news/bitcoin/merge-pull-request-2304-from-bruce039-bip375-sync-dleq/ Fri, 25 Sep 2026 22:49:38 +0100 A three-line change to bip-0375/deps/dleq.py applies % GE.ORDER to the challenge and adds two lines to proof verification. Small diff, cryptographic surface. https://coinbrief.org/news/altcoins/where-does-kusama-go-from-here/ https://coinbrief.org/news/altcoins/where-does-kusama-go-from-here/ Fri, 25 Sep 2026 22:47:26 +0100 Referendum #498 made Kusama an experiment-focused peer of Polkadot. The open questions are where it runs, who secures it, and whether the Vision Programme should be capped at two years. https://coinbrief.org/news/bitget-hack-losses-climb-to-387m-here-s-what-happened-and-wh/ https://coinbrief.org/news/bitget-hack-losses-climb-to-387m-here-s-what-happened-and-wh/ Fri, 25 Sep 2026 22:44:23 +0100 Attackers spoofed transaction data so that legitimate-looking transfer approvals drained hot and warm wallets. The haul includes about 103 million XRP; the CEO points at North Korea. https://coinbrief.org/news/ethereum/ethereum-s-tcb-part-1-the-client/ https://coinbrief.org/news/ethereum/ethereum-s-tcb-part-1-the-client/ Fri, 25 Sep 2026 22:41:31 +0100 An ethresear.ch post reframes the question as the Trusted Computing Base: everything trusted rather than proven, which is what humans still have to check. https://coinbrief.org/news/regulation/twenty-four-cfd-firms-closing-in-crackdown-on-misuse-of-uk-a/ https://coinbrief.org/news/regulation/twenty-four-cfd-firms-closing-in-crackdown-on-misuse-of-uk-a/ Fri, 25 Sep 2026 22:39:06 +0100 Twenty-one CFD firms have closed since 2025 and three are cancelling permissions. The conduct was little UK business plus an authorisation that made linked overseas companies look regulated. https://coinbrief.org/news/analysis/trusting-your-own-inputs/ https://coinbrief.org/news/analysis/trusting-your-own-inputs/ Fri, 25 Sep 2026 21:10:00 +0100 Bitget's approvals trusted their own request generator. Solana's consensus trusted a library. XRPL trusted a duplicated spec. And 21 CFD firms sold a licence they barely used.