Deprecated contracts still holding value
Sky Lending (formerly MakerDAO)'s assessment for RD-F-166 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
SAI (Single-Collateral DAI, `0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359`) deprecated since 2019-11-18. As of 2026-04-28: ~2.66M SAI circulating; on-chain market cap ~$32.55M (Etherscan: price $12.23, on-chain market cap $32,550,502.50). Well above $100K materiality threshold. SCD Tub/Tap contracts are immutable — MakerDAO/Sky has no governance path to drain, upgrade, or exploit. Yellow = material value present ($32.55M) but isolated legacy surface with no live exploit pathway into MCD Vat.
Sources #
- GitHubmakerdao/sai — GitHub (archived)makerdao/sai (SCD system archived repository — confirms immutable architecture; no admin path)retrieved 2026-04-28
- SAI (Single-Collateral DAI) Token — EtherscanSAI token contract — 0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359; max supply 2,661,529 SAI; price $12.23; on-chain market cap $32,550,502.50; retrieved 2026-04-28retrieved 2026-04-28
Methodology #
Determine whether contracts marked deprecated by a protocol announcement still hold >$100K in assets.
See the full factor methodology and distribution across all protocols →