119 posts tagged with "data"

An exact hash lookup has one embarrassingly simple invariant: if it returns a block, the hash field should be the hash you asked for. On Platåberget this week, Erigon broke that invariant in all 124 non-null replies; the other two calls returned null.

The other clients did not converge on one answer either. Besu, Nethermind, and ethrex could still return most or all of the orphaned blocks. Geth and Reth returned null. Ethrex returned the right block, then gave me the canonical sibling's transaction count when I asked about the same hash.

An Ethereum transaction announcement is an invitation: send the hash now, then let the other peer ask for the transaction. One Geth sampler on Glamsterdam devnet-8 spent 60 hours issuing invitations that its legacy peers could not cash. Its logs contain 163,752 failed full-blob encodes across 42,537 truncated transaction labels.

Twenty-one thousand gas used to be the boring answer for a plain Ethereum transaction. EIP-2780 turns it into three answers, and the current Glamsterdam devnet showed an awkward split: every execution client enforced the same new minima, while their eth_estimateGas endpoints returned three different rows.

An event named execution_payload_available should be safe to act on. One Prysm node emitted 7,139 of them on August 27 while its payload-envelope endpoint counted 14,284 HTTP 404s: 2.0008 misses for every event.

Yesterday, consensus-specs deleted its implementation of EIP-6914. The proposal is Stagnant and nobody expects it in an upcoming fork, so removing dead code is sensible. What surprised me was how much work that dead code was already ready to do.

Grandine and Lodestar did not validate a Gloas payload in zero milliseconds. The telemetry just made it look that way.

EIP-8148's worked 128 ETH threshold currently has two answers. The EIP tells deposit tooling to write bytes 00 80; the consensus spec merged yesterday reads those bytes as little-endian, gets 32,768, rejects it as out of range, and silently restores the 2,048 ETH default.

Mainnet still has 910 validator records with exactly 1 ETH. They are all pending_initialized, their median age is 404 days, and none can activate unless somebody supplies the other 31 ETH. EIP-8205 exists to stop protocols from creating this awkward little balance in the first place.

At first glance, Mainnet made 122,453 positive-value transfers from an address to itself in 14 days. That is a silly number. It is also wrong for the question draft EIP-8358 is trying to answer.

EIP-5920 proposes a PAY opcode that moves ETH without running the recipient's code. It is Draft, and a pull request proposing it for inclusion merged on August 20. The pitch sounds like a cleaner, cheaper value transfer.

Mainnet has a better explanation. From July 2 through July 13, the Prism contract made 104,998 empty-calldata ETH calls to Uniswap v4's PoolManager. PoolManager rejected every one. Prism caught almost all of those failures and booked 0.813726 ETH as pending credit instead, which is exactly the branch PAY would skip.