Custody
3 technical briefings from 3 companies building custody infrastructure.
Antonio Georgalis, principal solution engineer at Prime Trust, demos the Prime Trust regulated custody and liquidity platform — the API-driven back-end infrastructure that connects crypto to the US dollar financial system for fintechs. The platform covers KYC-gated account creation (/v2/accounts), settlement, cash and asset transfers, and a liquidity API (/v2/quotes) that converts between dollars and roughly eight to ten supported digital assets via a request-for-quote flow. Money-in rails include ACH pull, wire, debit card, and Signet; money-out covers ACH and wire disbursements. The demo walks through the liquidity quote lifecycle end-to-end: RFQ with a price and expiration, execute, and check settlement status. Prime Trust runs two settlement modes — instant (settle asynchronously within milliseconds of execution, default) and scheduled (execute first, move funds in later, settle end-of-day, similar to T+2 in traditional markets) — plus a hot vs. warm balance distinction for automated vs. operations-reviewed disbursements.
Clarisse Hagege & Josh Siegel
Clarisse (co-founder, CEO) and Josh (product) of Dfns introduce Dfns — a developer-first wallet-as-a-service platform that separates the security of the private key from the governance of the assets. Dfns operates a decentralized MPC signer network in secure enclaves so private keys never materialize in memory or on disk — no single point of failure like seed-phrase or multi-sig-HSM setups. The API is chain-agnostic (25 blockchains, 9,000 tokens, new chains in ~3 weeks, new tokens in ~half a day) and built to scale to millions of segregated wallets per customer. A customer demo with Nilos (treasury management) shows how a user signs in and gets a fully functioning EVM wallet in seconds via createAssetAccount (distributed key generation) and initiatePayment, with every transaction subject to Dfns's programmable, API-first policy engine — including 2-of-3-style approvals defined in code rather than in a vendor UI. Pricing is unusual for the custody space: Dfns charges per wallet, per authorized signer, and per policy-engine access — never on AUM or AUC.
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.