V-Sum Six

Casa profile

Nick Neuman & Michael Haley

Casa demos its personal key-manager product for Bitcoin self-custody — a safe, visually-consumer-first way to hold Bitcoin private keys without falling off the "one key, one pool of coins" cliff that has already lost an estimated 4M of Bitcoin\'s 21M total supply. At Casa\'s highest security tier, five keys protect one Bitcoin pool (mobile phone, three hardware wallets, one emergency Casa-held key) under a 3-of-5 multi-sig — losing any one key doesn\'t risk your funds. A separate "checking account" uses a single mobile key for fast spending. The send flow shows the multi-sig in action: the phone signs first, Casa emails a prompt to plug in a Trezor or Ledger for the second signature, and a third hardware approval broadcasts the transaction to Bitcoin\'s network. QR-code-based signing on next-gen hardware wallets will eliminate the email step. Casa\'s replace-a-lost-key flow skips seed-phrase recovery entirely — mark the key compromised, add a new hardware device, and transfer funds with the remaining healthy keys. Premium service tiers offer concierge-style support for high-net-worth holders.

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ZenLedger profile

Patrick Larsen & Dan Hannum

ZenLedger presents crypto taxes and accounting at V-Sum Six. Presented by Patrick Larsen and Dan Hannum, covering portfolio tracking, taxable event reporting, tax loss harvesting, and full audit reports for cryptocurrency investors and tax professionals.

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Hedera Hashgraph profile

Greg Scullard & Lina Tran

Hedera Hashgraph walks through the Hedera public distributed ledger — a leaderless consensus network with thousands of TPS, 3–5 second latency at full finality, native multi-signature, and fees pegged to the US dollar for predictable business economics. The briefing demos the Hedera Token Service (HTS), which issues fungible and non-fungible tokens as native network operations (not smart contracts), with configurable keys for admin / supply / KYC / wipe / freeze so issuers can layer in compliance features selectively. The live demo creates a VSAN6 fungible token (two decimals, variable supply, KYC-gated), walks through token association (recipients must opt in — protecting users from unsolicited airdrops and the tax liability they can trigger in some jurisdictions), grants KYC to Alice and Bob, transfers 20,000 tokens to Alice, and closes with an atomic swap across three assets (VSAN6, demo-token-one, and HBAR) in a single Hedera transaction.

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