Blockchain & DLT
6 technical briefings from 6 companies building blockchain & dlt infrastructure.
Nick Hynes
Oasis Labs demos on-chain verifiable credentials and selective disclosure on the Oasis confidential EVM. The thesis: put KYC/KYB data on-chain once with a trusted issuer (Equifax-rooted in this demo), then reuse it across web3 protocols without re-doing verification per counterparty — while giving users revocable, selective control over exactly what each verifier sees. The demo walks end-to-end through requesting a credential via identity.oasislabs.com, receiving both an NFT credential on the non-confidential Emerald chain and the full identity data stored confidentially on Sapphire (Oasis's confidential EVM, backed by trusted hardware), granting a demo website access to just the "is over 18" property, calling the isOver18 view from an Express backend, and revoking access afterwards. Broader use cases: credit score disclosure, zip-code mortgage / insurance quoting, and any flow that needs a derived fact rather than raw PII.
Mark Phillips & Abhay Kumar
Helium walks through the largest wireless network in the world — an IoT network built on the Helium blockchain and powered by token incentives (HNT, trading ~$27.50 with a ~$3.2B market cap at time of demo). explore.helium.com visualizes the hotspots providing LoRaWAN coverage in cities like San Francisco. Helium hotspots (40+ approved manufacturers under the Decentralized Wireless Alliance) plug into power and internet at home, broadcasting a long-range IoT signal for sensors and soon handsets. The live demo uses a Dragino LDS-S01 door sensor: opening and closing the door sends 9-byte packets over the Helium network, picked up by the fittingly named "stable-rouge-puma" hotspot and routed to console.helium.com in real time. The packets flow onward via a Datacake integration into a dashboard — a full end-to-end application built with a cheap sensor and the public network. On the incentive side, the hotspot routing the demo traffic earned ~0.339 HNT over 7 days and ~1.3 HNT over 30 days from proof-of-coverage mining plus a small Data Credit reward for actually carrying the packets.
Marvin Janssen & Friedger Müffke
Marvin Janssen, technical lead at the Stacks Foundation, gives a hands-on tour of Stacks — a Bitcoin L2 blockchain that anchors every block to the Bitcoin chain via proof-of-transfer, inheriting Bitcoin's security while adding smart-contract capability. The briefing centers on writing a SIP-009 NFT in Clarity, Stacks' non-Turing-complete Lisp-based smart-contract language. Marvin uses Clarinet — the Stacks analogue of Truffle plus Ganache — to scaffold the project, opens the Clarinet console for a REPL tour of Clarity (strongly typed, with distinct signed vs unsigned integer literals), then implements the SIP-009 NFT trait (Stacks' ERC-721 equivalent) using NFT primitives baked into the language (nft-mint, nft-burn, nft-transfer) — the correct balance-sheet semantics come for free. The ownership model is user-defined: Marvin asserts that sender equals tx-sender (Clarity's msg.sender) before transferring. A closing clarinet-console session mints two NFTs, checks owners, and transfers one between principals in the local Clarity VM.
Federico Pomi & Daniel Rollingher
Federico, CEO and co-founder of Fabrica, presents Fabrica — a platform that makes real estate programmable by wrapping each property in a legal trust whose ownership is represented by a non-fungible token. The demo walks through a complete on-chain land transaction on the Fabrica platform: a buyer picks a plot, clears KYC, links a Plaid-connected Chase checking account, signs a transfer agreement, and the NFT plus bank transfer settle together in about three minutes — with a recorded county deed and land-tax-assessor appointment falling out of the same flow. Because Fabrica uses a standard NFT contract, each property shows up on OpenSea with full transaction history, priced in Sila USD. Federico closes with the broader vision — collateralize, borrow against, fractionalize, or earn DeFi-vault yield on real property — and Fabrica's state-by-state expansion in California, Arizona, New Mexico, and Colorado.
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.
Eric Saraniecki
Eric Sarnecki, co-founder of Digital Asset, demos DAML — Digital Asset\'s framework for building networks of systems of record. The pitch: the world already runs on distributed ledgers, but the consensus algorithm is reconciliation — expensive, slow, and the reason payments are slow, margin is expensive, and capital requirements are astronomical. DAML replaces this by putting authorization directly on the data, enabling privacy-preserving data integrity across organizations. Customers are using DAML to rebuild equity settlement (eliminating margining), re-architect repo markets, and tokenize new asset classes (peer-to-peer sports betting, securitized factoring receivables). The demo showcases Digital Asset\'s open-source "market in a box" — a 30-minute-deployable marketplace with investors, custodians, and an exchange running on Project Daimler (Digital Asset\'s devops-free cloud runtime) and integrated with partner Xberry\'s high-performance matching engine. A sample Bitcoin/Tesla trading pair shows DAML\'s ability to create, list, and settle any pair on the fly, with a live view of per-party database state, UUID-based privacy-preserving onboarding, and data-layer authorization that blocks wrong-party API calls at the ledger itself.