Work 03 of 9 · Playbook C
Ledgerline
Onchain treasury vaults with the risk shown up front.
- Playbook
- C · Crypto, DeFi & Web3
- Variant
- C1 · Warm editorial
- Loud idea
- Warm gradient frame around a white sheet
- Type
- Newsreader 400 · Inter · Geist Mono
Treasury yield, without the guesswork.
Ledgerline runs non-custodial vaults for company treasuries. Every vault shows its strategy, risk grade and audits before you deposit a dollar.
- Total value locked
- $184.2M
- USDC Reserve, 7-day avg
- 5.84%
- Principal lost since launch
- $0
- Independent audits
- 3
Vaults
Yields are 7-day averages. Updated 12 seconds ago.
Scroll the table sideways for change, TVL and risk.
| Vault | APY | 30-day change | TVL | Risk | Strategy |
|---|---|---|---|---|---|
| USDC Reserve | 5.84% | +0.12 pts | $96.4M | Low | Tokenized T-bills |
| ETH Staking | 3.21% | −0.08 pts | $51.7M | Moderate | Liquid staking |
| EURC Reserve | 3.02% | +0.04 pts | $22.9M | Low | Tokenized T-bills |
| BTC Basis | 7.46% | −0.61 pts | $13.2M | Elevated | Delta-neutral basis |
Risk, shown before yield.
Grades come from a published framework: strategy, counterparty, liquidity and smart-contract risk, scored independently.
Audited three times
Northgate Security (Nov 2025), Halden Labs (Mar 2026) and Cobalt Audit (Jul 2026). Every report is public.
Non-custodial by design
Funds stay in your Safe. Vaults can’t withdraw to any address you haven’t approved.
Up to $500,000 bug bounty
Critical findings are paid within 14 days of a confirmed report.
Brief
What it had to do.
- Subject
- Non-custodial yield vaults for company treasuries.
- Audience
- Finance leads at crypto-native companies.
- Job
- Open the app and compare vaults.
- Proof
- Vault terms, audits and risk shown before the pitch.
Token plan
Written before any code.
design.md’s Agent Protocol asks for this table first. Ratios are WCAG 2, measured on the surface each color actually sits on.
| Color | Hex | Role | Contrast |
|---|---|---|---|
| Sheet | #FFFFFF | Page sheet | — |
| Ink | #0B0B0B | Headlines, square CTA | 19.68:1 with white |
| Ink subtle | #5E5E5E | Secondary text | 6.48:1 |
| Ember | #E8552D | Frame gradient (decorative) | — |
| Positive | #047857 | Yield up | 5.48:1 |
| Negative | #BE123C | Drawdown | 6.29:1 |
Decisions
Why it looks this way.
- 01
The warm gradient lives only in the frame around the page; no text ever sits on it.
- 02
Serif display (Newsreader) with square black buttons is C1's quiet system; the frame is the one loud idea.
- 03
APYs always carry a window ("7-day avg") and changes repeat the sign as well as the color.
- 04
Addresses are middle-truncated (0x71C7…976F) with a copy button, per UI Writing → Formatting.