OVERVIEW / PLAIN LANGUAGE
What is Blackcoin Protocol V4?
Blackcoin (BLK) is an established, independent Proof-of-Stake cryptocurrency with a history extending to its genesis block. Protocol V4 "Quantum Quasar"adds scheduled upgrades to that existing chain. It is a native-chain protocol, not a token contract; scheduled consensus rules must be evaluated at their activation heights.
What Protocol V4 adds
- The Gold Rush. A scheduled accounting phase that records synthetic credit on a separate "shadow" ledger, anchored to base-chain blocks. Credits are phase-lockedaccounting entries during Gold Rush, not spendable balances, deposits, or yield. They reconcile into the base chain at Migration under the applicable protocol conditions.
- A post-quantum migration path. A route to ML-DSA-44 (FIPS 204) signatures. The implementation is not FIPS-validated or certified and does not guarantee absolute security.
- New staking rules. Quantum cold-stake (owner/staker separation) and tiered staking via new output types, with scheduled activation heights.
What this site is
projectblackcoin.org displays chain records checked against agreeing observers. Data panels show freshness and availability. The site does not create addresses, hold keys, or take custody. Use a compatible indexed node at the same height and hash to reproduce chain records.
- Watch it live: the observatory and explorer.
- Build on it: the public API, the agent / MCP interface, and per-address feeds.
- Run it: the node guide, then verify every download.
- Integrate custody: the integration guide and the runnable Keystone reference.
The essentials
- Ticker: BLK · native coin of its own chain (no contract address).
- Consensus: Proof-of-Stake · ~64-second blocks.
- Supply: no fixed cap (PoS emission). Base-chain circulation and phase-locked Gold Rush credit are reported separately with exact timestamps at /api/supply.
- Release: use the published release catalog and 30.1.5.1 update guide. Source-derived chain parameters are at /api/chain-params.
- Timing: block heights govern the schedule. Gold Rush ends at block 6,192,999 and Migration starts at 6,193,000. See the timeline.
New to the terms? Start with the FAQ and the glossary. Reading the full spec? The whitepaper is on-site (with a PDF).