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papers/lux-teleport-omnichain/sections/06-yield-bearing-bridge-tokens.tex
zeekay 9504b4c3ef papers: cover-consistency + build pass on Lux Tier-2/3 catalogue
Sweep across the non-Tier-1 paper catalogue (Tier-1 owned by parallel
agent and excluded). All 113 processed papers already had luxcover
wired up; this commit fixes 14 build breakers and produces fresh
PDFs across the catalogue.

Fixes:
- lux-blockchain-scaling-laws: em-dash inside lstlisting -> --
- lux-corona-pq: stale \input pointing at 03-the-corona-scheme renamed
  to 03-the-corona-scheme (file already renamed on disk)
- lux-lattice-cryptography-primer: same Corona->Corona rename
- lux-formal-verification-lean4: Lean source uses unicode (×, ∀, ∃, ∈,
  ∧, ∨, ∩, ≠, ⟨, ⟩, ·, ¬) inside lstlistings. Added a literate map
  so listings render the math glyphs without UTF-8 fault.
- lux-id-did-specification: ✓/✗ in tabular replaced with \ding{51}
  / \ding{55} (pifont). Added pifont package.
- lux-ntt-simd-implementation: middle-dot in Go assembly listings;
  added literate {·}{\textperiodcentered}.
- lux-ntt-transform: μ, ×, –, — in regular text (no T1 fontenc).
  Replaced with $\mu$/$\times$/--/--- via unicode->latex sweep.
- lux-perpetuals-derivatives, lux-quantum-consensus,
  lux-quasar-consensus, lux-tee-computing-mesh: same unicode->latex
  sweep across body text. Also fixed broken math segment
  `$L_{avg} = 10$\times$$` -> `$L_{avg} = 10\times$`.
- lux-zchain: emoji glyphs in roadmap table replaced with
  parenthetical text.
- lux-triple-proof-consensus: dropped duplicate \usepackage{geometry}
  that clashed with luxcover (geometry option clash).
- pq: defined missing \Rq macro.

PDFs rebuilt for the full Tier-2/3 set.

Excluded (Tier-1, parallel agent): lp-073-pulsar, lp-stricte2epq,
dag-evm-formal, lp-010-quasar-stm-{3,4}, lp-020-quasar-consensus,
lux-institutional-custody, lux-nist-mptc-submission, pqsafe-il5,
pq-rns, plus shared/ and lps/.
2026-05-13 01:27:59 -07:00

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TeX

\section{Yield-Bearing Bridge Tokens}
\label{sec:yield}
%% +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
\subsection{Share-Based Accounting}
Yield-bearing bridge tokens (yLETH, yLBTC, yLUSD) use ERC-4626-like~\cite{erc4626} share accounting:
\begin{equation}
\text{sharePrice}(t) = \frac{\text{totalBacking}_{\text{source}}(t)}{\text{totalShares}_{\text{dest}}(t)}
\end{equation}
When yield accrues on the source chain, the MPC attests to new backing via Equation~\eqref{eq:deposit-msg} with \texttt{"BACKING"} prefix. The share price increases automatically---holders earn yield without transactions.
\subsection{Strategy Categories}
29 deployed strategies span 9 categories:
\begin{table}[h]
\centering
\scriptsize
\begin{tabular}{llr}
\toprule
\textbf{Category} & \textbf{Protocols} & \textbf{APY} \\
\midrule
& Lido, Rocket Pool & 3--5\% \\
Restaking & EigenLayer, Symbiotic, Karak & 3--8\% \\
Lending & Aave, Compound, Morpho, Euler, Spark, Fluid & 2--12\% \\
Stablecoin & MakerDAO/Sky, Ethena, Frax & 4--15\% \\
LP/DEX & Curve, Convex, Pendle, L2 DEXs & 5--20\% \\
BTC Native & Babylon, Lombard, SolvBTC, CoreDAO & 3--12\% \\
Solana & Marinade, Jito, Kamino & 5--10\% \\
TON & Tonstakers, Bemo, STON.fi & 5--15\% \\
Perps LP & LPX fee-based LP & 10--30\% \\
\bottomrule
\end{tabular}
\caption{Yield strategy taxonomy. 29 strategies across 9 categories.}
\label{tab:strategies}
\end{table}
\subsection{Yield Composition}
Bridge token holders earn layered yield:
\begin{equation}
\text{APY}_{\text{total}} = \underbrace{\text{APY}_{\text{base}}}_{\text{staking}} + \underbrace{\text{APY}_{\text{re}}}_{\text{restaking}} + \underbrace{\text{APY}_{\text{bridge}}}_{\text{fee share}} + \underbrace{\text{APY}_{\text{DeFi}}}_{\text{LP/lending}}
\end{equation}
For yLBTC on Lux: $\sim$5\% (Babylon) + $\sim$2\% (EigenLayer) + $\sim$1\% (xLUX bridge fees) + $\sim$5--15\% (DeFi) = 13--23\% total.
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