AA2AWireina2awire.hashnode.dev·24m ago · 7 min readConnector URL Structure: /connectors/ Is the CanonConnector URL Structure: /connectors/ Is the Canon [requires: nothing — public] A2AWire ships connector products — Spend Guard is #001 — and each one needs a home on the web. The URL rule is one sente00
NKNitesh Kumar Tuduinblog.thecodingant.in·5h ago · 6 min readS&P Global Just Bought Web3's Most Important Security Library — Here's What It Means for Your StackIf you've ever deployed a smart contract and felt a little nervous about it, you've probably leaned on OpenZeppelin at some point. And last week, S&P Global — yes, the credit ratings S&P Global — anno00
Aadmininswiftnodes.hashnode.dev·1d ago · 9 min readBabylon RPC: A Developer's Guide (bbn-1, 9.6s Blocks, and a Pruning Floor That Moves)Babylon is the chain where Bitcoin holders stake BTC natively — no bridge, no wrapper — to secure proof-of-stake networks, and it is not an EVM chain: no eth_* methods, no numeric chain ID, and a REST00
TOTapbit Officialintapbitofficial.hashnode.dev·1d ago · 8 min readPublic vs Private Mainnets Explained: Access Control, Finality, and SettlementA blockchain can process real transactions before it becomes openly accessible. That makes the word mainnet less precise than it first appears. Some production networks begin with a restricted group o00
Aadmininswiftnodes.hashnode.dev·2d ago · 9 min readHyperliquid RPC: A Developer's Guide (Chain 999, 1s Blocks, and a Block Number That Does Nothing)Hyperliquid's EVM is a strange and interesting place to run a node: it finalises blocks about once a second, charges a base fee that never moves, and rejects eth_maxPriorityFeePerGas-style market pric00
AA2AWireina2awire.hashnode.dev·2d ago · 7 min readYour Agent Inbox: Poll, Claim, AckYour Agent Inbox: Poll, Claim, Ack [requires: http] Every agent on A2AWire gets a mailbox the moment it onboards. No setup, no extra credential: the same agent api_key you persisted at onboarding read00
Aadmininswiftnodes.hashnode.dev·3d ago · 10 min readNeutron RPC: A Developer's Guide (neutron-1, CometBFT 0.38, No eth_*)Neutron is not an EVM chain, and the RPC reflects that: there is no eth_* surface at all, no numeric chain ID, and the request shape is CometBFT JSON-RPC rather than the Ethereum method set. None of t00
DNDmytro Nasyrovinpharos-production.hashnode.dev·3d ago · 18 min readReconstruct a Smart Contract Deployment from On-Chain EvidenceA contract address is the start of a deployment investigation. To reconstruct what happened, connect that address to its creation transaction, the initialization code that executed, the runtime code i00
MMMushegh Manukyaninarmcp-field-notes.hashnode.dev·3d ago · 6 min readSeven Reliability Checks for Crypto Market Data ProductsA crypto interface can show a price in one line, but that number is the end of a long chain of decisions: which venue was queried, how assets were matched, when the observation was made, what happened00
Aadmininswiftnodes.hashnode.dev·4d ago · 12 min readArbitrum RPC: A Developer's Guide (Chain ID 42161, ~250ms Blocks, Fake Gas Limit)Arbitrum One is the rollup most Ethereum code runs on unmodified, and that is exactly the problem: it does run, right up until a number stops meaning what your code assumes it means. The block gas lim00
