CoinYQ Dossier

Concordium made identity the price of entry, then divided the key to disclosure

Lars Seier Christensen began Concordium in 2018 with a decision most public chains avoided: an account would start with a verified off-chain identity. The 2021 network kept that identity out of public transactions, but built a route for courts, privacy guardians and providers to reconnect it. CCD later gave holders a vote over committee seats, while protocol authority remained with the Foundation-led structure.

A banker funded a chain around a compliance problem

After co-founding Saxo Bank, Lars Seier Christensen founded Concordium in 2018 and organized it around a Swiss nonprofit Foundation. Cryptographers including Ivan DamgÄrd advised the work, but current project records identify Christensen as the founder. The premise was narrower than the later language about enterprises and AI agents: a public chain could demand verified entrants without publishing their documents.

Mainnet went live on June 9, 2021. An approved identity provider became part of account opening, while proof-of-stake validators and WebAssembly contracts kept the network public to operators and developers. That pairing made identity a protocol dependency rather than a feature an application could ignore.

The passport stayed off-chain; the encrypted link did not disappear

The provider checks a person or company and stores its record outside the ledger. The wallet then uses commitments and zero-knowledge proofs so an account can demonstrate a valid credential or an attribute without posting the underlying name, birth date or document number. Ordinary observers see transactions and addresses, not the provider’s civil record.

The documented disclosure process works in two directions. Starting from an account, the authority sends the encrypted public holder identifier and court orders from the Privacy Guardians’ jurisdictions to the guardians. Each guardian uses its own private decryption key to decrypt its share and returns that result to the authority. The authority combines two valid responses out of three to reconstruct the identifier for the identity provider’s record lookup. A provider in another jurisdiction requires an additional local court order. Starting from a person, providers first locate identity records under the relevant orders and send the records, including encrypted linking keys, to the authority. The authority sends those keys and the relevant jurisdiction’s court order to the guardians, who decrypt and return their shares. Two valid shares out of three let the authority reconstruct each linking key and retrieve the associated accounts. The guardians retain their own private decryption keys; the case-specific shares they return are not those private keys. Personal identity records remain with the providers and are disclosed to the authority through this process.

Ten billion CCD placed funding and supply beside identity

The genesis block created 10 billion CCD. The 2021 cap table put 2.5 billion with seed purchasers, 1.954 billion in private sales, 1 billion with strategic partners and 1 billion in a team allocation. The Foundation’s 3.546 billion combined core holdings, a community and developer endowment, testnet incentives and market-making funds. Vesting staggered distribution. The 2024 transparency report says that in April 2023, part of the team allocation originally due from late April through July 2023 was deferred to 2024, with completion then scheduled for August 2024; this is a reported schedule, not confirmation that every recipient had been paid.

After genesis, minting is the only way the protocol creates more CCD. The annual growth rate fell from 8% to 4% on November 15, 2024; the stated 2% level remains a long-term goal, not an automatic schedule. The current split directs 90% of new CCD and transaction fees toward validators and delegators and 10% to the Foundation, so the same policy both funds security and dilutes unstaked balances.

A euro target still needs an oracle and a committee

CCD pays transfers and contract execution. A transaction’s energy is multiplied by a EUR-per-energy parameter and a variable CCD/EUR rate whose median comes from market-data sources. A basic transfer currently targets one euro cent, but neither the CCD amount nor the parameter is immovable.

Fee policy changed as the network developed. Governance records date the hundredfold reduction decision to January 2024; the October 23 announcement describes that temporary reduction as taking place in February. The October decision to restore the basic transfer price to one euro cent was announced for November 15, 2024, after Protocol 7 optimizations scheduled for October 30. Earlier rate changes in 2021 and automated updates in 2022 had already made conversion an actively managed part of the system. The euro target depends on these decisions and exchange-rate updates, rather than a fixed CCD price.

Holder elections arrived after three years of appointed decisions

The Foundation appointed all five Governance Committee members in the first phase. CCD holders elected two additional members in June 2024, and the 2026 election left seven of nine seats community-elected. Seat selection changed who advises, but it did not transfer final approval: the issuer filing describes the committee as recommending protocol and tokenomics changes and the Foundation Board as approving them and retaining final authority.

Election weight follows CCD in regular accounts, including staked CCD. Smart-contract balances are excluded. Custody does not add weight to the beneficial owner; the technical election guide says it belongs to the custodian’s account, which explains the public page’s advice to move CCD into a personal wallet. Holder elections therefore choose representatives without giving each holder update keys or a direct veto over every parameter.

How the project changed

  1. 2018
    Lars Seier Christensen founds Concordium

    A Swiss Foundation-backed project begins with identity and accountability placed in the base protocol.

  2. 2021-06-09
    Mainnet begins

    The public proof-of-stake chain launches with identity-provider onboarding required for accounts.

  3. 2021-09
    First published governance decision changes CCD/EUR rate

    The Foundation-appointed structure uses its parameter authority soon after launch.

  4. 2022-06
    Delegation enters the protocol

    Protocol and parameter decisions add validator pools and delegated CCD rewards.

  5. 2023-09-25
    ConcordiumBFT replaces the earlier consensus design

    A protocol upgrade changes finalization and increases the network’s stated throughput.

  6. 2024-06
    CCD holders elect two committee members

    The first on-chain election expands the Governance Committee from five appointed seats to seven total members.

  7. 2024-11-15
    Annual mint rate falls to 4%

    A committee decision lowers new issuance from 8% while keeping a 2% rate as a long-term goal.

  8. 2025-09-23
    Protocol-level tokens are added

    A governance-approved upgrade lets the chain handle additional native assets without ordinary token contracts.

  9. 2026-03-10
    Sponsored transactions enter the protocol

    A separate account can pay a sender’s fee, reducing the need for every application user to hold CCD first.

Evidence and primary sources

Last evidence review: 2026-09-05

What is Concordium?

Concordium is a public proof-of-stake blockchain founded in 2018 by former Saxo Bank co-founder Lars Seier Christensen. Its mainnet went live on June 9, 2021. The project’s distinguishing choice was to make an approved identity credential a prerequisite for opening an account, instead of leaving identity entirely to individual applications. Personal data stays with the user and an external identity provider rather than being written to the public ledger.

CCD is the network’s native asset. It pays transaction and smart-contract fees, can be bonded by validators or delegated, and weights elections for members of the Governance Committee. The chain began with 10 billion CCD. A 2021 allocation table assigned 25% to seed purchasers, 19.54% to later private sales, 10% to strategic partners, 10% to the team and 35.46% to Foundation-controlled core, community, testnet and market-making pools. Minting later expanded supply; the current policy is a 4% annual rate.

What problem does Concordium solve?

Concordium began from a conflict that regulated businesses encounter on public ledgers. They may need to know that a counterparty passed an identity check, yet publishing passports or names on an immutable chain would create a different liability. Concordium separated those acts: an identity provider checks the person off-chain, while a wallet proves possession of valid credentials and selected attributes with cryptography.

That compromise changes the meaning of privacy. A normal observer does not see the user’s civil identity, and no single identity provider or privacy guardian should be able to map ordinary accounts alone. In an exceptional investigation, however, a court-authorized process can combine enough guardian shares and then ask the relevant provider for its stored identity record.

How does Concordium work?

Before a regular account is created, a person or company obtains a credential from an approved identity provider. Personally identifiable information remains in the wallet and the provider’s system and is never placed on-chain, even in encrypted form. The wallet instead creates commitments and zero-knowledge proofs, so a user can prove a condition such as being over 18 without publishing a birth date. The legacy Desktop Wallet’s provider-submitted initial account is a documented exception: its provider knows that initial account, while later regular accounts retain the separation-of-powers design.

The documented disclosure process works in two directions. Starting from an account, the authority sends the encrypted public holder identifier and court orders from the Privacy Guardians’ jurisdictions to the guardians. Each guardian uses its own private decryption key to decrypt its share and returns that result to the authority. The authority combines two valid responses out of three to reconstruct the identifier for the identity provider’s record lookup. A provider in another jurisdiction requires an additional local court order. Starting from a person, providers first locate identity records under the relevant orders and send the records, including encrypted linking keys, to the authority. The authority sends those keys and the relevant jurisdiction’s court order to the guardians, who decrypt and return their shares. Two valid shares out of three let the authority reconstruct each linking key and retrieve the associated accounts. The guardians retain their own private decryption keys; the case-specific shares they return are not those private keys. Personal identity records remain with the providers and are disclosed to the authority through this process.

ConcordiumBFT orders and finalizes transactions through CCD-weighted validators. A validator currently needs 500,000 CCD; holders can delegate to a pool or use passive delegation without transferring custody. CCD is minted daily at a rate designed to produce 4% annual supply growth. Ninety percent of minted CCD and transaction fees goes toward validators and delegators, and 10% goes to the Foundation. Under the Protocol 7 rules restated in the February 2026 white paper, reduced or removed validator and delegator stake becomes inactive at the next pay day, earns no rewards and remains locked for seven days. Moving between a pool and passive delegation instead takes effect at the next pay day without cooldown.

The fee paid in CCD is derived from transaction energy, a EUR-per-energy parameter and a changing median CCD/EUR rate, so the token amount moves even when a basic transfer targets €0.01. Protocol control follows a separate path. The Governance Committee recommends parameter and protocol changes; the Foundation Board approves them and retains final authority under the issuer’s published framework. Seven of nine committee seats were community-elected after the 2026 election, but holders’ current direct on-chain role is still primarily electing those representatives. Authorized update keys and compatible validator software are then needed to enact protocol changes.

Key facts

  • Concordium was founded in 2018 by Lars Seier Christensen; Ivan DamgĂ„rd and other cryptographers are listed as scientific advisers, not co-founders.
  • Mainnet launched on June 9, 2021 with protocol-level identity required for account creation.
  • Personal identity information is not written on-chain. It is held in the user wallet and by the chosen identity provider.
  • Concordium documents two legal disclosure directions. Both currently require a two-of-three Privacy Guardian threshold: an account-led case reconstructs a public holder identifier before the provider lookup, while a person-led case reconstructs linking keys after providers find matching records. Court orders follow each provider’s and guardian’s jurisdiction.
  • The genesis block created 10 billion CCD. The 2021 cap table allocated 25% to seed purchasers, 19.54% to private sales, 10% to strategic partners, 10% to the team and 35.46% to four Foundation-controlled purposes.
  • Current documentation states annual CCD mint growth of 4%. Ninety percent of minted CCD and fees supports validators and delegators; 10% goes to the Foundation.
  • A validator currently needs 500,000 CCD. Delegated CCD remains in the holder’s wallet but cannot be spent while staked.
  • A basic transfer is targeted at €0.01. The amount charged in CCD changes with energy use and a median CCD/EUR oracle rate.
  • After the 2026 election, seven of nine Governance Committee members were community-elected. The committee remains advisory: it recommends protocol and tokenomics changes, while the Foundation Board approves them and retains final authority under the issuer filing.
  • Regular and staked CCD can weight committee elections. Smart-contract balances do not count; custody balances do not count for the beneficial owner and the technical election guide assigns their weight to the custodian’s account.
  • Published governance decisions changed consensus, minting, cooldowns, fees, identity providers, delegation, protocol-level tokens and sponsored transactions between 2021 and 2026.
  • On September 5, 2026, CCDScan returned TotalAmount of 14,640,311,292.781130 CCD and TotalAmountReleased of 12,703,781,043.262067 CCD; the second API field should not be relabeled as freely tradable supply without its definition.
  • The 2024 decision and February 2026 white paper set a seven-day cooldown for validator and delegator stake reductions or exits; inactive stake earns no rewards. Switching pools or passive delegation has no cooldown. A current FAQ still repeats the superseded three-week figure.

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Frequently asked questions

Who founded Concordium?

Lars Seier Christensen, a co-founder of Saxo Bank, founded the project in 2018 and chairs the Foundation. Official materials list Ivan DamgÄrd and other cryptographers as advisers and research contributors rather than founders.

Does everyone need to publish their identity?

No. A user must pass an off-chain check with an approved identity provider before creating an account, but personal data is not placed on the public chain. Wallets can prove selected attributes without revealing the underlying data.

Can an account still be linked to a real person?

The documented disclosure process works in two directions. Starting from an account, the authority sends the encrypted public holder identifier and court orders from the Privacy Guardians’ jurisdictions to the guardians. Each guardian uses its own private decryption key to decrypt its share and returns that result to the authority. The authority combines two valid responses out of three to reconstruct the identifier for the identity provider’s record lookup. A provider in another jurisdiction requires an additional local court order. Starting from a person, providers first locate identity records under the relevant orders and send the records, including encrypted linking keys, to the authority. The authority sends those keys and the relevant jurisdiction’s court order to the guardians, who decrypt and return their shares. Two valid shares out of three let the authority reconstruct each linking key and retrieve the associated accounts. The guardians retain their own private decryption keys; the case-specific shares they return are not those private keys. Personal identity records remain with the providers and are disclosed to the authority through this process.

What is CCD used for?

CCD pays fees, secures validator stake, can be delegated for rewards, and weights Governance Committee elections. These functions do not give a holder equity in the Foundation or a direct claim on its treasury.

Who can change Concordium’s rules?

The Governance Committee recommends parameter, protocol and tokenomics changes. The issuer filing says the Foundation Board approves them and retains final authority. CCD holders elected seven of nine committee members by 2026, but wider direct votes and holder-originated proposals remain part of the decentralization roadmap.

Why do CCD fees change if Concordium quotes them in euros?

The EUR target is converted into CCD. Energy use is multiplied by the EUR-per-energy parameter and a median CCD/EUR oracle rate, so the number of CCD charged can change.

How was the original CCD supply distributed?

The 10 billion genesis supply was divided among seed and private purchasers, strategic partners, team recipients and several Foundation-controlled pools. The largest single line was 27.71% for core Foundation holdings; a 25% seed sale was next.

Is the staking cooldown seven days or three weeks?

The enacted 2024 decision and the February 2026 white paper say seven days for both validators and delegators when stake is reduced or removed. The stake is inactive and earns no rewards during that period. Moving between a pool and passive delegation has no cooldown. The three-week wording that remains in the FAQ is stale documentation.

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