Our Hedera Hashgraph Practice
Build the business flow around the ledger.
Connect Hedera services to the assets, messages and applications your organization needs. We scope the network interaction together with the identity, governance and operational work that makes it useful.
The opportunity
Start with a decision
worth improving.
An enterprise workflow needs a tokenized record and a verifiable event history. Different parts of the design may call for tokens, consensus messages or contract logic rather than one undifferentiated blockchain layer.
From possibility to a working system
Follow the flow.
Three connected decisions. One considered architecture.
Conceptual flow, not a live system or measured result.
Choose the service boundary
Map the use case to token, consensus and contract capabilities. Decide what belongs on the network and what remains in the application's data and control systems.
Integrate the workflow
Connect account management, signing and network receipts to the business application. Design reconciliation and failure handling as part of the integration, not an afterthought.
Prepare to operate
Test the workflow in the appropriate environment and document key custody, access and support responsibilities. Review network-specific constraints and fees for the intended usage.
The work, made concrete
What we can build
with your team.
We agree scope, dependencies and acceptance criteria before delivery. Your project can start with an assessment, a pilot or an integration into an existing system.
Hedera service and data architecture
Clarify the system boundary, the responsible owners and the decisions the architecture needs to support.
Application and ledger integrations
Turn the agreed design into reviewable work, evaluated against representative inputs and explicit success criteria.
An operational readiness plan
Make the next step operable: document responsibilities, known limitations and the path from pilot to ongoing use.
Explore the practice
Further capabilities
and implementation detail.
Why Hedera, and why ColdAI
Hedera is a public, open-source distributed ledger built on the hashgraph consensus algorithm. It is governed by a council of global enterprises and operated as a permissionless network with predictable, USD-denominated fees, sub-second finality, and asynchronous Byzantine fault-tolerant (aBFT) security. For regulated institutions, that combination — a defensible consensus story, predictable economics, and protocol-level primitives for tokens, audit logs, and EVM smart contracts — is what makes production deployments realistic. ColdAI is a member of The Hashgraph Association and a delivery partner for enterprise teams building on Hedera. We design, build, and operate systems across the full Hedera stack: tokenisation, stablecoins, programmable carbon, AI-agent payments, and permissioned enterprise networks via HashSphere.
Hedera at a glance
Our Hedera service lines
Eight focused practices spanning the Hedera stack
Hedera Token Service (HTS)
Native, protocol-level fungible and non-fungible tokens with KYC, freeze, supply, and royalty controls — no smart contract required.
Hedera Consensus Service (HCS)
Verifiable timestamps and fair ordering for audit trails, supply chains, AI receipts, and cross-chain messaging.
Smart Contract Service (HSCS)
EVM-equivalent Solidity contracts with native HTS and HCS system-contract integration.
Asset Tokenization Studio
Compliant security-token issuance for equity, debt, funds, and RWAs with on-chain transfer restrictions and lifecycle hooks.
Stablecoin Studio
Open-source SDK and admin platform for issuing and operating fiat-backed stablecoins on HTS.
AI Studio
Hedera Agent Kit and toolchain for AI agents that pay, settle, remember, and prove what they did on-chain.
Sustainability Studio (Guardian)
Tokenise and verify carbon credits, RECs, and biodiversity assets under Verra, Gold Standard, and ICVCM methodologies.
HashSphere
Permissioned, KYC-gated Hedera environment for banks, payment providers, and public-sector deployments.
How we engage on Hedera
A four-phase engagement model from architecture through operations
Architecture & Compliance Design
We map your use case, regulatory perimeter, and integration surface — then design the right mix of HTS, HCS, HSCS, and Studios to deliver it. Output: an implementation-ready architecture and compliance brief.
Build & Integrate
Engineering against Hedera SDKs (Java, JavaScript, Go) and Studios. We integrate KYC providers, custodians, banking rails, oracles, identity, and existing core systems.
Audit & Launch
Independent code review, key-management hardening, treasury and multi-sig setup, and mainnet rollout — including SOC2-aligned operating procedures.
Operate & Scale
Ongoing operations, monitoring, on-call, governance support, and feature delivery. Optional HashSphere managed environment for regulated workloads.
Where ColdAI typically delivers on Hedera
| Use Case | Hedera Primitives | Typical Outcome |
|---|---|---|
| Tokenised deposits & branded stablecoins | Stablecoin Studio + HTS | Regulated, branded stablecoin live in 8–14 weeks |
| Real-world asset issuance (debt, equity, funds) | Asset Tokenization Studio + HSCS | Compliant primary issuance with on-chain registry |
| Carbon, REC, and biodiversity programmes | Guardian + HCS + HTS | Auditable, methodology-aligned environmental tokens |
| AI-agent commerce and machine-to-machine payments | AI Studio + HTS + HCS | Agents that transact, settle, and produce verifiable receipts |
| Permissioned enterprise DLT for regulated entities | HashSphere + HTS | KYC-gated network bridged to public Hedera mainnet |
| High-volume audit and supply-chain provenance | HCS | Cryptographically verifiable event log at protocol cost |
ColdAI joins The Hashgraph Association
Read our announcement on becoming a member of The Hashgraph Association — what it means for our enterprise clients, and where we are taking the partnership next.
Read the announcementFrequently asked questions
In depth
Go deeper into building on Hedera
Two cross-service guides: the application architecture we start from, and how to make the case for Hedera to a risk committee.
- 01ArchitectureReference architecture for an enterprise app on HederaA reference architecture for business apps on Hedera: signing, transaction submission, mirror node reads, service choice, environments and failure handling.
- 02Deep diveExplaining Hedera to a risk committeeHow Hedera is governed, what aBFT consensus means in plain terms, how fees are set, who runs nodes and which residual risks a committee should record.
What a Hedera delivery partner owns, and what stays with you
Hiring a Hedera development partner buys design, engineering and operating work around the network: deciding what belongs on the ledger, integrating signing and receipts with your applications, and preparing the workflow to run in production. ColdAI's practice delivers that as a Hedera service and data architecture, the application and ledger integrations, and an operational readiness plan1.
Some decisions cannot move to a partner, however capable. The legal meaning of a token, the regulatory status of the activity, and the decision about who in your organization may authorize administrative actions belong to accountable people on your side and your advisers. Network integration does not by itself establish compliance1. A good engagement makes those decisions explicit early, and records who made them, rather than letting them be settled implicitly by whoever writes the code.
Ownership of accounts is the clearest example. We recommend that production accounts, payer accounts and token keys belong to your organization from the first day of mainnet, held in your own HSM or KMS, even when we operate the system for you. A partner should be replaceable without anyone having to move keys or re-issue tokens.
Which part of the Hedera practice to start with
Most workflows combine services, but one usually carries the core requirement. Start with the page for that service.
- If
You need a transferable balance, entitlement or collectible with issuer controls.
ThenStart with Hedera Token Service.
Supply, keys and associations are the decisions that shape everything else.
- If
You need proof that an event happened, and in what order, that other organizations can check.
ThenStart with Hedera Consensus Service.
Evidence design depends on what a verifier must conclude, not on token mechanics.
- If
Settlement depends on conditions, escrow or logic shared between parties.
ThenStart with the Smart Contract Service.
The contract specification and its threat model are the critical path.
- If
The asset is a regulated security or a fiat-backed stablecoin.
ThenStart with Asset Tokenization Studio or Stablecoin Studio.
Purpose-built tooling already encodes the roles and lifecycle those instruments need.
- If
AI agents must pay, settle or leave verifiable receipts.
ThenStart with AI Studio.
Separating agent intent from signing authority is the first design problem.
- If
Environmental claims must be issued and traced under a methodology.
ThenStart with the Sustainability Studio (Guardian).
The methodology and its policy workflow define the data model.
- If
Participants must be admitted and vetted before they transact.
Ways to staff a Hedera build, compared honestly
| Option | Works well when | Watch out for |
|---|---|---|
| In-house team learning Hedera | You have strong backend and security engineers and time to learn | Network-specific failure modes found late, in production |
| Studio or open-source toolkit, self-deployed | Your use case matches what the toolkit already does | Integration, key custody and operations remain entirely yours |
| Specialist Hedera partner such as ColdAI | You need cross-service architecture and production operations quickly | Dependency on the partner unless handover is planned from the start |
| Large systems integrator | The ledger is a small part of a very large transformation program | Ledger depth varies; ask who on the team has shipped on Hedera |
These options combine well. A common pattern is a partner-led first release with your engineers embedded, followed by a staged handover.
Why enterprise Hedera pilots stall before production
The pilot proves the network works but not the business process
Early signalA demo transfers tokens on testnet, yet nobody can say which internal record changes as a result.
MitigationScope the first release around one concrete transaction or evidence workflow, with the system of record named.
Nobody owns keys and accounts
Early signalTestnet keys sit in a developer's environment file and mainnet ownership is undecided.
MitigationName key custodians and approval rules before mainnet planning starts, and involve security from the first workshop.
Legal meaning arrives after the build
Early signalCounsel first sees the token design a week before launch.
MitigationBring legal and compliance into the service-boundary decision, when the design is still cheap to change.
Operations were never budgeted
Early signalNo one is on call, no fee budget exists and mirror node access relies on a free endpoint.
MitigationTreat monitoring, fee treasury and read infrastructure as part of the build scope, not a later phase.
What to bring to a first Hedera scoping conversation
None of this needs to be polished. Rough answers are enough to decide whether, and how, Hedera fits.
When we would advise against Hedera, or against hiring us
If a single organization controls all the data and nobody outside it needs to verify anything, a conventional database is simpler, cheaper and easier to govern. We will say so. The distributed ledger page sets out how we test whether a shared ledger adds value at all.
Hedera is our primary recommendation for regulated, high-throughput, predictable-cost use cases, but our recommendations are technology-neutral1. If your counterparties, liquidity or existing contracts already sit on another network, that may outweigh Hedera's advantages. And if you have an experienced ledger team and only need a narrow component, a short architecture review may serve you better than a full delivery engagement.
Frequently asked questions
What do we receive at the end of the architecture stage of a Hedera engagement?
An implementation-ready architecture: which Hedera services carry which part of the workflow, what stays in your own systems, how signing and key custody work, and how receipts are reconciled. It comes with the compliance questions that must be answered by your accountable specialists, and an outline of the operational readiness work needed before mainnet.
Should our organization or ColdAI own the Hedera accounts and keys?
Your organization. We recommend that production accounts, payer accounts and token keys are created under your control and held in your own HSM or KMS, even when ColdAI builds or operates the system. That keeps administrative authority with the people accountable for it and lets you change partners without re-issuing tokens or moving keys.
Which Hedera SDKs and languages does ColdAI build with?
We engineer against the Hedera SDKs for Java, JavaScript and Go, and against the Hedera studios where they fit the use case. Smart contracts are written in Solidity for Hedera's EVM with standard tooling. The language choice usually follows your existing platform, so the system can be maintained by your own engineers later.
Can a Hedera project start on testnet before key custody is decided?
Yes, and it often should. Early testnet work clarifies which accounts, keys and approvals the workflow really needs, which makes the custody decision concrete. What should not happen is promotion to mainnet with testnet habits: keys in environment files, hard-coded account IDs or a single developer able to sign administrative actions. Settle custody before mainnet planning begins.
How should we compare Hedera consulting firms?
Ask each firm to walk through a production failure mode, such as a timed-out submission or a lost key, and how their design handles it. Ask who will own accounts and keys, what the handover plan is, and which parts of the work they would advise you to keep in-house. Vague answers to those questions matter more than polished demos.
Sources
- Our Hedera Hashgraph practice — ColdAI
Connect the architecture
Go deeper into the stack.
Explore the complementary capabilities that can turn an individual technology into a complete workflow.
Your next move
Bring us the
real problem.
A workflow that takes too long. A system that cannot connect. An idea that needs a technical path. Start there, and we can define what to investigate, build and measure.
- A concrete transaction or evidence workflow
- Network/account ownership
- Key custody and governance stakeholders