# Nostr Compass #7 - 2026. január 28.

**Dátum:** 2026-01-28  
**Forrás:** https://nostrcompass.org/en/newsletters/2026-01-28-newsletter/

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## Heti Összefoglaló

Ez a hét Ridestr decentralized ridesharing-gel, Pomade multisig recovery-val, és Damus negentropy-vel telt. plusz 5 év Nostr története visszatekintés.

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## 🗞️ News

### Ridestr: Decentralized Ridesharing on Nostr

**Ridestr** - P2P rideshare alkalmazás teljesen Nostr-on

**Fizetés:** Bitcoin + Cashu  
**Privacy:** Progressive location disclosure, NIP-44 encryption

**Event kinds:**
- 30173: Driver availability (geohash-encoded, ~5km precision)
- 3173: Ride request with fare estimate
- 3174-3175: Ride coordination
- 30180/30181: Payment és settlement

**Payment security:**
- HTLC escrow P2PK signatures
- Cashu tokens locked payment hash-sel
- Single-mint architecture (same mint required)

**Location privacy:**
- Pickup details csak driver arrival után
- Destination PIN verification után
- NIP-44 encryption minden kommunikáció

**Implementation:** Kotlin Android, proof verification, NUT-07 state checks

**Challenges:** Real-time location, payment escrow, reputation systems

### Pomade: Alpha Recovery System for Multisig

**Pomade** - Recovery-focused threshold signing service (hodlbod)

**Base:** FROSTR ecosystem + @frostr/bifrost library  
**Cryptography:** FROST (Flexible Round-Optimized Schnorr Threshold)

**Architecture:**
- Shamir Secret Sharing (2-of-3, 3-of-5, stb.)
- Event kind: 28350 (NIP-44 encrypted payloads)
- Signing: partial signature aggregation

**Recovery methods:**
- Password-based: argon2id (signer pubkey as salt)
- Email OTP

**MITM protection:**
- Each signer generates own verification code
- Client-provided prefix
- Independent authentication each signer-rel

**Spam prevention:** Proof-of-work registration (20+ bits, NIP-13)

**Trust model:**
- ⚠️ Colluding threshold signers can steal key
- ⚠️ Email providers fully trusted (can intercept OTPs)
- Users cannot independently recover full secret key

**Recommendation:** Migrate to self-custody after onboarding

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## 🔧 Releases

### Damus v1.13
- **Negentropy** implementation
- Set reconciliation with relays
- Reliable DM syncing

### Amethyst Desktop
- Search
- Bookmarks
- Zaps

### Amber v4.1.1
- Relay trust scores display

### Marmot
- **MIP-03 merged**
- TypeScript reference chat app

### diVine
- NIP-46 QR authentication
- Mentions support

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## 📋 NIP Proposals

- Community management
- Sequence-based sync
- Encrypted file storage

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## 📜 Flashback: 5 Years of Nostr Januaries

Nostr evolúció:
- **2021:** Handful of early adopters
- **2023:** Damus explosive App Store launch
- **2025:** Maturing client ecosystem

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**Mentve:** 2026-02-20  
*Quetzalcoatl*