FREQUENTLY ASKED
Blackcoin Protocol V4 FAQ
Answers link to the protocol documentation, node guides, and verification steps.
- What is Blackcoin Protocol V4?
Blackcoin (BLK) is an independent Proof-of-Stake blockchain. Protocol V4 "Quantum Quasar" adds Gold Rush accounting, a post-quantum signature migration path, and new staking rules on the existing chain history from genesis. BLK is a native coin, not a token contract on another network. Scheduled consensus rules apply at their activation heights.
- Is it Proof-of-Work or Proof-of-Stake?
Blackcoin uses Proof-of-Stake. Its last Proof-of-Work block was at height 10,000, and blocks arrive about every 64 seconds. Gold Rush uses Argon2id work carried in claim transactions; it does not produce base-chain Proof-of-Work blocks. Run a node and stake to participate in block consensus.
- Is BLK a token or a native coin? Is there a contract address?
BLK is the native coin of its own chain and has no token contract address. It is not an ERC-20 or BEP-20 token. A representation called BLK on another chain is not native Blackcoin. Check the published chain parameters to verify network identity.
- What is the maximum supply?
Blackcoin has no fixed maximum supply. New coins are issued as staking rewards. Base-chain circulating supply and phase-locked synthetic Gold Rush credits are reported separately. Gold Rush credits are excluded from circulation during that phase. The supply API and explorer provide reconciled figures with timestamps.
- What are the Gold Rush and the shadow ledger?
Gold Rush is a scheduled Protocol V4 accounting phase. It records synthetic credits on a separate shadow ledger anchored to base-chain blocks. During Gold Rush these phase-locked credits are not spendable balances, deposits, or yield. They reconcile into the base chain at Migration, subject to the applicable consensus and authorization conditions.
- What is Migration, and when does it happen?
Migration is the scheduled transition for legacy outputs and phase-locked credits. Block heights govern the transition: the final Gold Rush block is 6,192,999, and Migration starts at 6,193,000. The competing-claim rule is scheduled at 5,993,200. Activation heights determine when a rule applies; software release dates do not change them.
- Is this quantum-proof?
Protocol V4 implements a migration path to ML-DSA-44 signatures, defined in FIPS 204. The implementation is not FIPS-validated or certified, and it does not guarantee absolute security. Security also depends on source identity, randomness, storage, backups, integration, consensus, and operation.
- How do I run a node?
Select a published production package from the download catalog, verify it, and follow the node guide for installation, configuration, staking, ports, and troubleshooting. Keystone is a historical, deposits-disabled regtest evaluation stack. It is not independently audited and must not hold customer funds.
Downloads · Verify a download · Node guide · Keystone evaluation stack
- What changed in 30.1.5.1?
Release 30.1.5.1 was published on September 12, 2026. It corrects retained-claim capacity, confirmed-parent accounting, and wallet-wide input-selection limits. Issues #54, #55, and #56 are completed. The release changes no rewards or activation heights. Its upgrade guide covers source and publication evidence, compatibility, platform-signing limits, backups, and installation.
- Does zero Gold Rush hashrate mean the miner is broken?
A live-claim wait, relay, locked wallet, or staking-only unlock can correctly produce zero hashrate. Inspect getpowmininginfo for the mining state. Historical quarantine counts alone do not establish health. Never delete retained claims or release their reserved inputs to force progress.
- How do I integrate as an exchange or build on the data?
Custody and deposit detection use your own blackcoind node and its JSON-RPC interface. The public API, MCP interface, and explorer provide read-only chain data. This site does not hold keys or funds. Keystone is a deposits-disabled evaluation reference, not independently audited production custody software.
- Where is Blackcoin-Dev support? How do I avoid scams?
Use the channels operated by Blackcoin-Dev listed on the community page. Support will never ask for your seed phrase, private keys, wallet file, or passwords. Moderators do not initiate support by direct message. Report security issues privately using the security policy.