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Sergio Lerner

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lightning++ Berlin 2025 | Main Stage – Day 1bitcoin++ Berlin 2025, lightning edition2025-10-02
Day 1 reports concrete wins and real problems: an event merch system uses BTC Pay and self‑custodial checkout, runs a Square pilot and records 4,183…
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Building Secure and Watchtower efficient Bitcoin Payment Channels with BitVMXbitcoin++ Berlin 2025, lightning edition2025-10-02
Introduces a channel that uses one-time signatures to make watchtowers require constant space (about 2KB per channel) and only the last two revocation…
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