Finality
T0 DeterministicFinality is the authoritative tier. It is what the chain treats as settled, and it is the tier any integration should be written against.
max-rollback-depth is 100 blocks. That is the configured ceiling on how far the tip can be reorganised, and in practice the lag stays well below it. At a block roughly every 60 seconds, 100 blocks is a bound you can put in a runbook rather than a probability you have to reason about.
A second tier, T2 HotStuff, has been authoritative on testnet since 3 August 2026, on node DecentralChain v1.7.0. The reading taken that week was testnet height 108,096 with hotStuffFinalizedHeight at 107,697.
Not yet verified · Q2
Whether T2 HotStuff is authoritative on mainnet has not been verified, and this page will not claim it either way. The public mainnet node reports DCC v1.3.5, several releases behind the 1.7.0 that carries HotStuff, which is reason enough not to assume it. Until someone confirms it against mainnet, write your integration against T0 and the 100-block bound.
Track confirmations against /blocks/height instead, and compare it to the height your transaction was included at. The API reference lists what does answer.