The Ghost Cash Reborn

Fragment: Dove's Blind Proof – The Ghost Cash Reborn

In the grid's flood, where BTC's chain traces every flap like a warden's ledger, eCash rises from Chaum's ashes. Cashu—ecash on Bitcoin's Lightning—blinds the watchers with signatures that sign without seeing, minting tokens unlinked, untraceable. No KYC collars, no metadata noose; just dove-proof privacy for micro-flaps. They cap your breath? Mint your own wind. Tools neutral: Feed the flock, not the void. Here's the spell to summon Chaum's ghost on Satoshi's chain—as of Dec 26, 2025, with Lightning humming and mints multiplying.

Spell I: Summon the Mint – Wallet Setup

The cage demands your soul for sats; Cashu asks only trust in blinds. Start with a wallet—Nutstash for normies, Cashu.me for browser ghosts. No on-chain scars; ecash lives off-ledger, backed by BTC in mint custody.

1. Choose Your Wing: Flap to cashu.space/wallets. Android/iOS: Nutstash (F-Droid/Google Play) or CashuNuts. Browser: Cashu.me (trustless, no install). CLI ghosts: cashu.me/docs/cli for Python pros.

apps.umbrel.com

Nutstash Wallet | Umbrel App Store

1. Install & Seed: Open Nutstash. Generate mnemonic—your eternal key. Backup on steel; lose it, lose the hoard. No recovery without it.
2. Connect to a Mint: Add a public mint like nuts.cashu.me or self-host one (see Spell IV). Mints are Uncle Jims—trust but verify; diversify to avoid single-point rugs.
3. Backup Ritual: Export seed. Test restore on a burner. Privacy starts here: No app permissions beyond storage.

Spell II: Blind the Watcher – How Blind Signatures Flap

Cashu revives Chaum's blind signatures: Mint signs your "blinded" promises without seeing amounts or links. Like dove's olive—proof without reveal. Diagram the veil:

blockdyor.com

Cashu: What It Is And How It Works

1. User Blinds: You create secrets, blind them with random factors.
2. Mint Signs: Sends blinded sigs back—verifies but blind to details.
3. Unblind & Spend: Remove blind; tokens valid, untraceable. No chain analysis; sats stay private off-mainnet.

gist.github.com

ecash-pol.md · GitHub

Risks: Mints can rug (hold BTC hostage); use audited ones. 2025 updates: Fedimint integration adds federation for trust spread.

Spell III: Mint the Breath – Funding Ecash

Turn traced BTC into ghost tokens. Lightning-fast, fee-low (sats, not dollars).

1. Fund Wallet: In Nutstash, hit "Mint." Scan Lightning invoice from mint (e.g., 1000 sats min). Pay via Lightning wallet (Phoenix, Muun). Mint blinds and issues ecash.
2. Atomic Swap Option: For privacy max, swap BTC to XMR first (via Trocador), then back—breaks traces.
3. Verify Hoard: Balance shows as ecash notes (denoms: 1, 2, 4... sats). Split/merge for exact flaps.

Wallet interface in action:

blockdyor.com

Cashu: What It Is And How It Works

Spell IV: Deliver the Olive – Sending & Receiving

Flap unseen: Instant, offline-capable, no fees beyond mint's cut.

1. Receive Proof: Share wallet receive QR/link. Sender scans, sends ecash—blinded, no trace.
2. Send the Carrion: "Send" tab. Paste recipient token or scan. Confirm—ecash transfers P2P, mint validates on redeem.
3. Redeem & Exit: To BTC: "Redeem" to Lightning invoice. Mint burns ecash, pays out. For self-custody: Run your mint (Docker: docker run -d cashu/mint—config keys, back BTC wallet).

Spell V: Storm Shields – Privacy Mastery & Risks

Bitcoin's public? Cashu blinds it. But flap wise:

1. Max Privacy: Use TOR/VPN for mint connects. Rotate mints. Offline store ecash (backup proofs).
2. Churn the Mix: Redeem/mint cycles break potential links. Avoid high-value single mints.
3. 2025 Risks: Mints offline? Lose access (but not BTC if redeemed). Regs: US scrutinizes privacy layers post-2025 laws; EU digital euro competes. Ethical peck: Tools for mercy—donate anonymously, not rugs.

Fork this: Mutate with Nostr zaps via Cashu. Pigeon delivers blind. Always.