Editorial note: This publication and Quirky Cotton Collective share an owner. The artwork on the I Wear This Shirt Periodically chemistry element-tile pun reads, in its printed form, as four periodic-table-style tiles: 53 I, 74 W, 22 Ti, 16 S. Above...
The native garment preview shows large bold white lowercase meh. lettering on a dark shirt. No animal illustration is present. That is the whole design. Four letters, a period, set at a size that would be legible from across a room,...
Editorial note: This publication and Quirky Cotton Collective share an owner; this is not an independent review. The artwork on the Let’s Root For Each Other And Watch Each Other Grow Garden shirt is a closed loop. The words LET’S ROOT...
The common framing of this problem is wrong in a way that matters for anyone reviewing the spec. The claim is usually stated as: an attacker holding retired validator keys can build an alternative chain and rewrite history for a freshly...
The phrase “5-of-9 multisig” is doing a lot of work in bridge discussions. It sounds like a Gnosis Safe: nine signers, five signatures, each signer inspects calldata in a wallet UI and clicks confirm. That mental model is wrong for most...
The Fiat-Shamir transform is the standard method for turning an interactive public-coin proof into a non-interactive one. It replaces the verifier’s random challenge with the output of a hash function evaluated over a transcript. The security of the resulting proof depends...
Ethereum’s beacon chain derives its in-protocol randomness from a RANDAO accumulator. Every block proposer contributes a single, verifiable value — a BLS signature over the current epoch number — and the protocol mixes it into the accumulator with XOR. The design...
On November 25, 2023, at epoch 202,736, Ethereum’s consensus layer split. Prysm and Lighthouse — the two most widely deployed consensus clients — disagreed on which chain was canonical. No safety violation. The fork resolved within four epochs. But the incident...
In June 2023, a validator on a mid-sized proof-of-stake network started missing attestations during a stretch of unusually heavy MEV activity. The operator wasn’t malicious. It was undercapitalized. Its insurance pool had been drained by a slashing event two months earlier,...
Every consensus failure on a production blockchain shares a common ancestor: a moment where the specification said one thing, the implementation did another, and nobody caught the divergence until the chain split. The blockchain engineering literature is rich with formal proofs...