Sunday’s tape was quieter than Saturday’s bounce, but the filings were not. The CoinGecko snapshot fetched at 00:22 UTC on September 20, 2026 put Bitcoin at $81,246, up 0.27%. Ether was $2,630.08, up 0.63%. Solana was $110.88, down 1.88%. Global market cap sat near $2.77 trillion, bitcoin dominance about 58.9%, and 24-hour volume about $79.1 billion.
Grayscale filed a 3-for-1 split for The Zcash ETF. USBC borrowed another $3 million against 479 bitcoin at Kraken’s Payward unit. Intchains, the chip designer, posted a first-half loss after product sales almost vanished. Researchers sketched a relayer-free shielded pool. Magicians drafted a Know-Your-Agent ERC. Lodestar 1.48.0 moved PeerDAS columns onto flat files. Lido floated LDO bonds for node operators. Coinbase was still investigating delayed MultiversX sends.
Grayscale Investments Sponsors LLC, sponsor of The Zcash ETF (ZCSH), filed an 8-K accepted at 08:03 ET on September 18, 2026 announcing a 3-for-1 forward share split. Shareholders of record at market close on September 28 receive two extra shares after the close on September 29, and NYSE Arca trading is scheduled to go split-adjusted before the open on September 30. The ticker and CUSIP stay the same. The press exhibit's illustration shows ten $300 NAV shares becoming thirty $100 shares; the account value does not change.
USBC, Inc. told the SEC it took a fifth draw of $3.0 million on September 11, 2026 under its Master Loan Agreement with Payward Interactive, Inc., a Kraken affiliate. Outstanding principal is now $21.0 million at 8.5% interest, maturing September 11, 2027, and secured by 479 bitcoin held at Payward Financial. The 8-K, accepted at 09:15 ET on September 16, says a roughly 27.4% drop in that bitcoin, with no extra collateral, would have hit the 130% margin-call ratio as of September 14. No collateral calls or liquidations had occurred by that date.
Intchains H1 revenue collapses as chip sales stall
Intchains Group Limited filed a 6-K on September 18, 2026 with unaudited accounts for the six months ended June 30. Total revenue fell to RMB 11.1 million, about $1.64 million at the June 30 noon buying rate of 6.7851 yuan per dollar, from RMB 175.6 million a year earlier, and the firm swung to a RMB 148.9 million net loss, about $21.9 million. Third-party product sales were only RMB 279,000, and a related-party customer supplied 97.5% of 2026 revenue. The ether-and-staked-ether stack was 9,176 ETH at June 30, including about 1,000 staked, marked at RMB 98.1 million after an RMB 89.5 million fair-value hit in the half.
A September 19 Ethresear.ch post proposes replacing EVM shielded-pool relayers with a locomotive or wagon role bit inside each note. The author cites a June 2026 Railgun measurement (arXiv:2606.25926): 1,049 self-broadcast withdrawals tied to the gas payer, and 124 relayer-like addresses handling 89% of relayed volume. A Python simulation with seed 1 puts steady-state overhead at 1.009x to 1.012x gas per useful transaction, with a 7-block median wait. The post is a spec plus simulation, not shipped code, and it does not claim a larger anonymity set.
Magicians draft a Know-Your-Agent ERC for agent trust checks
Ethereum Magicians thread 29735, posted September 19, drafts a Know-Your-Agent container for trust conclusions that ERC-8004 deliberately does not define. It specifies a Scheme Registry, a KYA Registry of assertions with level, issuer, expiry, and revocation, a ZK-KYA verifier path, and an EIP-712 handshake. The write-up points to ethereum/ERCs pull request 2012 and a reference repo; the ERC number is not assigned yet. The framework records who attested what, and it does not set a credit score.
Lodestar v1.48.0 moves PeerDAS columns to flat files
ChainSafe tagged Lodestar v1.48.0 on September 15 as a strongly recommended upgrade for mainnet and testnet. Newly persisted PeerDAS data columns go to $dataDir/data_columns, or a path set with --dataColumnDir, with per-column indexing and compression so the client can read requested columns without loading every column for a block. Existing LevelDB column data stays as a fallback, and blob sidecar storage is unchanged. The notes also list Gloas light-client support and a NetworkProcessor denial-of-service fix.
A September 17 Lido research RFC would make stVaults and Curated Module operators post a security deposit in LDO equal to 2% to 5% of the ETH they manage, then earn 20% to 30% of vault-level fees, with a 30-day unbonding period and slashing for downtime or MEV-policy breaches. The author cites protocol revenue near $100,000 per day and argues that sending fees straight to LDO holders still looks legally messy. It is a discussion post, with a proposed pilot on Curated Module v2 or one new stVaults tier. It is not an executed vote.
Coinbase Status opened a minor incident at 01:49 PDT on September 19, 08:49 UTC, for delayed MultiversX (EGLD) sends and receives, blaming a network issue. Buys, sells, and fiat rails are not affected, and the post says funds are safe. As of our 00:30 UTC fetch on September 20 the incident was still marked investigating, with no later update. This is a Coinbase venue note, not the earlier Kraken EGLD funding pause.
