CoinYQ Dossier

When a million coins changed nothing—and consensus changed everything

The 2021 rebrand made each old BCHA look like one million XEC, but the ledger did not restart. The deeper transformation arrived later, when a proof-of-work chain gave Avalanche nodes a voice before and after blocks.

A funding rule split Bitcoin Cash before eCash had its name

On 15 November 2020, competing Bitcoin Cash implementations separated. Bitcoin Cash Node kept the BCH name and ticker; the Bitcoin ABC branch traded as BCHA. Its inherited ledger was continuous with Bitcoin Cash up to the fork, while its future rules included ASERT difficulty adjustment and a development allocation.

Calling July 2021 the launch of a wholly new token erases that origin. The asset now called XEC is the native coin of the ABC branch, with its own chain history since the split.

One BCHA became a million XEC because the ruler changed

At noon UTC on 1 July 2021, the project adopted the eCash name and changed the wallet and exchange denomination: one BCHA became 1,000,000 XEC. The same UTXOs represented the same proportional stake in supply; no issuer received old coins and no bridge minted claims against them.

The choice produced a 21-trillion-XEC headline cap and two decimal places. One XEC corresponds to 100 of the inherited smallest ledger units, so the million-fold number is accounting scale rather than monetary expansion.

Proof of work writes; Avalanche comments

SHA-256 miners still assemble the chain and compete through work. Avalanche-enabled nodes independently sample peers and weight replies through signed proofs of XEC stake. The two mechanisms therefore answer different questions: work proposes history, while Avalanche rapidly builds agreement about transactions and acceptable chain tips.

This is neither conventional proof of stake replacing mining nor a connection to the AVAX blockchain. The eCash implementation borrows the consensus family and anchors Sybil resistance in native XEC UTXOs.

The second voice arrived after blocks first—and before blocks later

Post-Consensus went live on 14 September 2022, giving Avalanche participants a way to finalize the mined chain and resist reorganizations after a block. Staking rewards followed on 15 November 2023.

Pre-Consensus activated much later, at block 923,347 on 15 November 2025. It lets nodes agree on transaction ordering before inclusion, which is the basis for the current under-three-second payment claim. A later overview dates Post-Consensus differently; the contemporaneous launch record is the stronger clock.

Staking is a signed UTXO plus a running machine

A Stake Proof references controlled UTXOs rather than depositing them in a smart contract. Each eligible staking output must be a Pay To Public Key Hash (P2PKH) UTXO, which assigns spending control to a public-key hash, containing at least 100,000,000 XEC with at least 2,016 confirmations. One Stake Proof may include several eligible UTXOs; the minimum applies to each output. The operator must keep an Avalanche-enabled node online.

Current documentation says the coins remain spendable, are not locked and face no slashing. Spending invalidates their proof weight, while downtime can prevent participation. The 10% block share is therefore compensation under current network policy, not interest automatically attached to a wallet balance.

Four coinbase slices expose where policy power lives

Current policy directs 58% of each block reward to miners, 16% to protocol development, 16% to the Global Network Council and 10% to Avalanche stakers. The infrastructure plan describes recipient and amount as miner policy enforced by Avalanche acceptance rather than permanent consensus constants.

Bitcoin ABC leads node and protocol development and publishes releases on a six-month upgrade rhythm. Miners, staking nodes, exchanges and full nodes must install compatible software or fall out of sync. Ordinary XEC ownership does not itself grant a ballot over releases, a Council seat or a veto on funding recipients.

A private key owns coins, not the organizations around them

Native XEC has no token-contract owner able to pause a proxy or blacklist an address. That removes one class of administrator switch, but it does not make protocol evolution automatic: source maintainers propose code, miners construct coinbases, Avalanche nodes police acceptance and operators coordinate upgrades.

The public protocol pages do not turn XEC into equity in Bitcoin ABC, a claim on Council funds, a redeemable deposit or a fixed revenue share. What a holder can prove directly is control of UTXOs and the network functions attached to them.

How the project changed

  1. 2020-11-15
    The ABC branch becomes BCHA

    The Bitcoin Cash fork creates the Bitcoin ABC chain, initially known by the BCHA ticker.

  2. 2021-07-01
    BCHA is re-denominated as XEC

    The eCash brand begins and each BCHA is displayed as 1,000,000 XEC on the same ledger.

  3. 2022-09-14
    Post-Consensus goes live

    Avalanche nodes begin finalizing mined chain history and resisting reorganizations.

  4. 2023-11-15
    Staking rewards begin

    Eligible Stake Proof operators begin receiving the staking portion of block rewards.

  5. 2025-11-15
    Pre-Consensus activates

    Block 923,347 enables rapid pre-block transaction ordering.

  6. 2026-05-15
    The scheduled network upgrade is completed

    The official page reports completion, identifying block 949,200 as the first post-upgrade block. Infrastructure operators were required to run compatible Bitcoin ABC 0.33.x; this upgrade did not activate new protocol features.

Evidence and primary sources

Last evidence review: 2026-09-05

What is eCash?

eCash (XEC) is the native UTXO coin of the chain that emerged as Bitcoin Cash ABC, or BCHA, in the 15 November 2020 Bitcoin Cash split. On 1 July 2021 the project changed the public denomination at 1 BCHA to 1,000,000 XEC. Existing balances and transaction history continued; this was a change of ruler, not an ERC-20 migration, wrapped claim or new reserve-backed asset.

The chain retains SHA-256 proof of work and Bitcoin-like capped issuance, then layers an independently implemented Avalanche protocol over it. That Avalanche is not the AVAX network. Post-Consensus helps reject reorganizations after mining; Pre-Consensus, active since block 923,347 on 15 November 2025, lets participating nodes settle transaction ordering before a block.

What problem does eCash solve?

The 2020 split was triggered by disagreement over protocol funding and node policy. eCash kept a mandatory development allocation, then tried to address two Bitcoin-style limits: slow confidence for retail payments and weak economic coordination around competing blocks. The answer was not to remove miners. It was to let proof of work produce blocks while stake-backed Avalanche nodes add rapid opinions about transactions and chain tips.

How does eCash work?

Miners build SHA-256 blocks and must include the reward outputs required by current network policy. Avalanche-enabled nodes create signed Stake Proofs over mature XEC UTXOs, poll peers and weight responses by proven stake. Each eligible staking output must be a Pay To Public Key Hash (P2PKH) UTXO, which assigns spending control to a public-key hash, containing at least 100,000,000 XEC with at least 2,016 confirmations. One Stake Proof may include several eligible UTXOs; the minimum applies to each output. The coins do not move into a custody contract, and the current guide says there is no lock or slashing, but the operator must keep a compatible node online.

Post-Consensus and Pre-Consensus solve different moments. The former finalizes the mined chain and resists reorgs; the latter gives sub-block transaction confidence. Current block allocation is 58% to miners, 16% to protocol development, 16% to the Global Network Council for ecosystem development and 10% to Avalanche stakers. Those shares and recipients are policy maintained through node software and network adoption, not an immutable coupon owed to every XEC holder.

Key facts

  • BCHA began at the Bitcoin Cash split on 15 November 2020; the eCash/XEC name and denomination began on 1 July 2021.
  • The conversion was 1 BCHA to 1,000,000 XEC on the same chain. One XEC represents 100 of the inherited smallest units and is displayed to two decimals.
  • The stated cap is 21 trillion XEC, the million-fold display equivalent of Bitcoin’s 21 million-coin cap; issuance still halves on a Bitcoin-derived schedule.
  • eCash mining remains SHA-256 proof of work. Its Avalanche layer is an eCash implementation and is unrelated to the Avalanche/AVAX blockchain.
  • Post-Consensus launched on 14 September 2022; Pre-Consensus activated at block 923,347 on 15 November 2025.
  • Each eligible staking output must be a Pay To Public Key Hash (P2PKH) UTXO, which assigns spending control to a public-key hash, containing at least 100,000,000 XEC with at least 2,016 confirmations. One Stake Proof may include several eligible UTXOs; the minimum applies to each output. The operator must keep an Avalanche-enabled node online.
  • Current documentation describes staking as non-custodial, without a protocol lock or slashing; rewards are operational and policy-dependent, not guaranteed yield.
  • The current block split is 58% miners, 16% protocol development, 16% Global Network Council and 10% Avalanche stakers.

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Frequently asked questions

Was XEC created by swapping BCHA into a new token?

No. The 2021 change re-expressed balances on the existing BCHA chain at one million XEC per BCHA. There was no custodian, bridge or redemption desk in that conversion.

Is eCash Avalanche the same as Avalanche and AVAX?

No. Bitcoin ABC implemented an Avalanche-family consensus layer for eCash. XEC remains the native coin of its own SHA-256 UTXO chain.

Did Avalanche replace proof-of-work miners?

No. Miners still produce blocks. Avalanche nodes add Pre-Consensus on transactions and Post-Consensus on mined history.

Can any XEC balance earn staking rewards?

No. Each eligible staking output must be a Pay To Public Key Hash (P2PKH) UTXO, which assigns spending control to a public-key hash, containing at least 100,000,000 XEC with at least 2,016 confirmations. One Stake Proof may include several eligible UTXOs; the minimum applies to each output. The operator must keep an Avalanche-enabled node online. Holding alone does not earn a fixed return.

Are staking coins locked or slashable?

The current official guide says Stake Proofs do not move or lock the coins and the protocol has no slashing. Key security, uptime, software and policy changes still create risk.

Does one XEC give one governance vote?

No universal one-coin-one-vote ballot is documented. Active Stake Proofs weight Avalanche polling, Bitcoin ABC publishes node software, and miners and node operators decide whether to adopt compatible policy.

Can an administrator freeze my XEC?

Native XEC has no ERC-20 owner, blacklist or proxy administrator. Control instead appears in private keys, node-release code, miner templates, Avalanche acceptance and coordinated upgrades.

What legal claim does XEC represent?

The reviewed protocol materials describe a bearer-like native coin, not equity, a deposit, a reserve redemption promise, a fixed dividend or membership in the Global Network Council.

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