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
Building something to make Bitcoin self custody so simple, configurable and beautiful, that there’s no excuse to still be a slave.
Grateful to people, like nostr:nprofile1qqsqfjg4mth7uwp307nng3z2em3ep2pxnljczzezg8j7dhf58ha7ejgprpmhxue69uhhqun9d45h2mfwwpexjmtpdshxuet5qyt8wumn8ghj7un9d3shjtnswf5k6ctv9ehx2aqnz0fd0, who share their valuable time giving critical feedback at the early stages.
https://www.bitcoinbutlers.com/concierge/master
It will be a platform to enable Bitcoiners to monetize their Bitcoin knowledge. No kyc, no bank account needed, just PoW and a Lightning address for those selected.
I will white label self custody tools:
- Seed Generation:
Metal Codex32
Seed picker cards
Entropia pills
- Seed in Use:
Metal Seed Signers (plus)
3D printed Seed Signers
Coldcard Q, Mk4, Blockstream Jade & Jade Plus, Passport
- Seed at Rest:
Custom single sig and multisig backup plates, can add Wars for partial or full wallet descriptors privately or for you to etch further.
One convenient spot, configure what you think is the best concierge document, share it with friends or family. I will make all of the content conditionally render, they can buy all the tools (if they want) and buy butlers and my time (if they want).
No more obscure payment amounts, unstructured content, limited options hidden behind 15-30 min exploratory calls.
Bitcoin self custody and concierge will be forever changed.
If you want to help, or follow along. You can see my NOSTR handle here:
nostr:nprofile1qqsxw5qspw70g7x7lk9fch588vh8nk8uz2es7l25exyy78tvxd4n8cgh4nk9c
Or watch me ship publicly week in and week out. Cheers Bitcoiners!
Let's go!