Encrypted Mempool Telemetry

🔒 Encrypted Mempool Console

EIP-8184 (Lucid) observability — the MEV surface encrypted mempools erase, the block space they reserve, and the protocol telemetry to verify them once live.

Baseline live· updates every 30s

EIP-8184 · LucidResearch → DevnetUSD values

EIP-8184 is not yet live on mainnet

Protocol telemetry — key-reveal rate, PTC consensus, slashing, revert dynamics — activates the moment an encrypted-mempool devnet (Kurtosis / Fusaka + EIP-8184 branch) is indexed. Until then, the console measures the baseline an encrypted mempool eliminates from live chain data, and models the block space EIP-8184 reserves.

1 · The Problem, Measured Live

sandwich MEV since Dencun

Sandwich Attacks

0 in last 30d

Users Sandwiched

distinct victim addresses

Order Flow at Risk

—USD

victim swap volume exposed

Value Extracted

—USD

— USD in last 30d

Sandwich attacks exist only because pending transactions are public before inclusion. Sealing them until inclusion (EIP-8184) removes this front-running surface — the figures above are its live, on-chain cost.

The Surface, Over Timelive · 90d

Sandwich MEV encrypted mempools erase — daily over the last 90 days

2 · EIP-8184 Sealed-Capacity Model

modeled from live execution-layer gas

Block Gas Envelope

live gas

Avg block utilization0.0%

—

Sealed lane cap (1/8 limit)12.5%

—

Sealed Headroom

model

0.0%

of block gas currently unused

The 1/8 sealed lane exceeds current free gas — encrypted demand would compete with plaintext at peak load.

How the Cap Works

EIP-8184

1/8 baseline. Sealed transactions are capped at one-eighth of the block gas limit.
Up to 1/2 catch-up. The cap expands during congestion so sealed backlog can clear.
Two-slot. Block N reserves the space + ciphertext; block N+1 reveals keys and executes.

The Two-Slot Pipeline

EIP-8184 · Lucid

How a Lucid ticket moves from sealed reservation to decrypted execution

Block NReserve & Seal

• Ticket reserves block space in the sealed lane
• AEAD ciphertext (RFC 9180) committed — contents hidden
• Top-of-block fee paid; 1/64 held against key withholding

Block N+1Reveal & Execute

• Key revealed; PTC votes on key availability (LucidKey)
• Transactions decrypted & executed in order
• Unrevealed keys slashed 1/64 of top-of-block fee

3 · Protocol Telemetry

Awaiting devnet

The verification layer. Each metric is defined and query-ready against the planned etm_tickets / etm_block_stats tables; values populate once an EIP-8184 devnet is indexed. This is what lets the community verify encryption works rather than trust the claim.

Key Publication & Slashing

Key Reveal Success Rate

—

awaiting devnet

Primary health metric — share of sealed tickets successfully decrypted at N+1.

keys_revealed(N+1) / tickets_included(N)

Key Withholding Rate

—

awaiting devnet

Detects builder/user equivocation or key-propagation failures.

100 − reveal_success_rate

Slashed Top-of-Block Fees

ETH

—

awaiting devnet

Financial penalties levied for unrevealed keys.

Σ top_of_block_fee × 1/64

PTC Consensus Health

LucidKey Vote Participation

—

awaiting devnet

Validator committee engagement in key-availability voting.

ptc_votes_cast / committee_size

PTC Consensus Agreement

—

awaiting devnet

Clarity of key-availability signals among the committee.

majority_votes / total_votes

Builder PTC Adherence

—

awaiting devnet

Detects builders including txs the PTC flagged missing.

blocks_following_ptc / total_blocks

MEV Protection & Reverts

Post-Decryption Revert Rate

—

awaiting devnet

State contention when sealed txs execute at block N+1.

reverted_decrypted / total_decrypted

Reclaimed Block Gas

gas

—

awaiting devnet

Builder gas saved when failing tickets drop without full execution.

Σ gas_limit − gas_used_on_revert

Top-of-Block Fee Premium

gwei

—

awaiting devnet

Premium users pay for front-running protection.

avg(sealed_fee) − avg(priority_fee)

Whitelist & Cartelization

Publisher Concentration (HHI)

index

—

awaiting devnet

Validator vote concentration on key publishers — cartelization risk.

Σ (stake_share_publisher_i)²

Newcomer Approval Time

days

—

awaiting devnet

Chicken-and-egg friction for new key publishers.

t(registration → 51% votes)

Ciphertext Overhead Ratio

—

awaiting devnet

Bandwidth bloat from AEAD / threshold-scheme encapsulation.

(ciphertext − plaintext) / plaintext

Ingestion Schemaready for devnetshow DDL ▾

The ClickHouse tables the indexer writes once a Lucid devnet is reachable. Populating them lights up every metric above — no schema or query work is left, only data.

blob_lens.etm_tickets

CREATE TABLE blob_lens.etm_tickets (
  block_number         UInt64,
  block_timestamp      DateTime,
  ticket_hash          FixedString(32),
  sender               LowCardinality(String),
  top_of_block_fee_wei UInt128,
  gas_limit            UInt64,
  ciphertext_bytes     UInt32,
  is_revealed          UInt8,
  reveal_block_number  Nullable(UInt64),
  key_hash             Nullable(FixedString(32)),
  is_canonical         UInt8,
  version              UInt64
) ENGINE = ReplacingMergeTree(version)
ORDER BY (block_number, ticket_hash);

blob_lens.etm_block_stats

CREATE TABLE blob_lens.etm_block_stats (
  block_number             UInt64,
  block_timestamp          DateTime,
  total_tickets            UInt16,
  revealed_tickets         UInt16,
  withheld_tickets         UInt16,
  sealed_gas_used          UInt64,
  sealed_gas_limit         UInt64,
  slashed_fees_wei         UInt128,
  ptc_vote_participation_pct Float32,
  decrypted_revert_count   UInt16,
  is_canonical             UInt8,
  version                  UInt64
) ENGINE = ReplacingMergeTree(version)
ORDER BY (block_number);

Baseline & gas model: live from BlobLens (ethereum.blocks, mev_sandwiches) · Protocol telemetry: EIP-8184 spec (ETM WG #000–#007), pending devnet data

BlobLens

Initializing DA Telemetry…