ECIP (draft) - Elysium Revenue Routing Destinations

_specs/ecip-tocila-elysium-routing-destinations.md

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+---
+ecip: ?
+title: Elysium Revenue Routing Destinations
+lang: en
+author: Daniel Tocila
+status: Draft
+type: Standards Track
+category: Core
+created: 2026-03-12
+license: CC0-1.0
+---
+
+## Abstract
+
+This ECIP defines the deterministic destination addresses and minimal custody semantics for receiving the three `1%` `BASEFEE` allocations reserved for Core ETC, ETC Grants, and logtrees under the Elysium fee-market upgrade.
+
+## Motivation
+
+### Design Goal
+
+The Elysium routing destinations are deterministic, minimal, and auditable.
+Their purpose is to receive and hold the three non-miner `BASEFEE` allocations while exposing only the minimal interfaces required by separately specified settlement or governance paths.
+
+### Principles
+
+- deterministic destination addresses
+- immutable consensus-layer routing targets
+- clean separation between routing and downstream governance or settlement logic
+- modular support for multiple productive or operational allocations
+
+### Non-Goals
+
+This ECIP does not itself define:
+- logN formulas,
+- UI behavior,
+- grant-program governance,
+- off-chain LLC administration,
+- empirical calibration of rewards.
+
+Those are separate concerns.
+
+## Specification
+
+### Deterministic destination addresses
+
+The deterministic Elysium routing destination addresses are:
+
+- `ELYSIUM_CORE_ETC_ADDRESS`: **TBD**
+- `ELYSIUM_ETC_GRANTS_ADDRESS`: **TBD**
+- `ELYSIUM_LOGTREES_ADDRESS`: **TBD**
+
+The mechanism by which these addresses are made deterministic or otherwise fixed for activation is **TBD**.
+
+### Minimal custody semantics
+
+At minimum, each destination MUST be able to receive the value transfers resulting from its `1%` `BASEFEE` allocation under the companion Elysium basefee split routing draft (i.e., it must be a valid address for balance crediting).
+
+The remaining `97%` of `BASEFEE` is paid to the block beneficiary at consensus and does not pass through these destinations.
+
+Any settlement, distribution, routing, grants, or governance logic for funds held at these addresses is out of scope for this ECIP.
+
+## Rationale
+
+This ECIP separates routing of the Core ETC, ETC Grants, and logtrees allocations from any downstream operational or productive settlement logic to keep the consensus-facing requirements minimal and auditable.
+
+## Implementation
+
+Implementation details are **TBD** pending finalization of the deterministic address derivation or address-selection method for each destination.
+
+## Draft Alias
+
+Until an ECIP editor assigns a number, this draft should use an alias-based filename rather than a pseudo-numbered identifier.
+
+- Draft alias: `ecip-tocila-elysium-routing-destinations`
+
+## Copyright/Licensing
+
+This document is licensed under Apache-2.