Today I verified our fiat payments work for our concierge calendar, Bitcoin Pay Server works for our shop and I worked on Bitcoin Butlers Gift Voucher System 🎁 We just implemented a cryptographic gift voucher system inspired by @pardus79 (Bitcoin Pin's) Proof-Of-Gift - using Ed25519 signatures, similar to Chaumian eCash. https://github.com/pardus79/Proof-Of-Gift How It Works Token Format: BB-NONCE-AMOUNT-EXPIRY-SIGNATURE Each voucher is a self-contained cryptographic token that: ✅ Verifiable without database lookup - signature validation only needs the public key ✅ Unforgeable - Ed25519 signatures can only be created with the private key ✅ Double-spend protected - redemption registry prevents reuse ✅ Has built-in expiry - 12 months from issue, encoded in the token itself ✅ Change Tokens If your voucher is worth more than the booking, you automatically get a change token for the remaining balance. Just like getting change back from cash! Example: Buy $50 voucher → Book $30 consultation → Get $20 change token emailed The Flow Purchase butler consultation time from the Master Concierge Shopify webhook triggers token generation Cryptographically signed token emailed to you Paste token when booking → credit applied instantly Why This Approach? No account or kyc needed. Privacy-preserving - tokens can be transferred without our involvement No central balance tracking - the token IS the value Offline-capable verification - signature math, not database calls Bitcoin ethos - bearer instruments, cryptographic proof Built for Bitcoin self-custody consultations by Bitcoiners, not Fiat maxing "Bitcoiners" who take short cuts. 🔗 Book a Butler: bitcoinbutlers.com/butlers 🎁 Gift sovereignty from our master concierge: https://www.bitcoinbutlers.com/concierge/master #Bitcoin #SelfCustody #Nostr #ProofOfGift #Ed25519
