About Tidecoin

Tidecoin is a post-quantum cryptocurrency that has been in continuous operation since December 27, 2020. Every transaction on the network is signed with Falcon-512, a lattice-based digital signature scheme selected by NIST for standardization as FN-DSA (Draft FIPS 206). The project was born from a direct response to the quantum computing threat to cryptocurrency — its genesis block message references the University of Science and Technology of China's photonic quantum supremacy demonstration.

// the story

How did Tidecoin start?

On December 9, 2020, a photonic quantum computer named Jiuzhang demonstrated quantum computational advantage — processing a task in 200 seconds that would take a classical supercomputer 2.5 billion years. This event underscored the urgency of quantum-safe cryptography.

Eighteen days later, on December 27, 2020, Tidecoin's genesis block was mined. Its timestamp message reads:

spectrum.ieee.org 09/Dec/2020 Photonic Quantum Computer Displays 'Supremacy' Over Supercomputers.

The project was first announced on BitcoinTalk on January 4, 2021. Since then, the network has operated continuously for years with no publicly disclosed security incidents. Operational-evidence claims should point readers to /status for timestamped verification.

Tidecoin was discussed on the public pqc-forum mailing list hosted by NIST. This is a public discussion forum — it does not imply NIST approval, certification, or endorsement of Tidecoin. Tidecoin uses NIST-standardized algorithms but is not NIST-certified or NIST-approved.

What is Tidecoin's operational track record?

01 · GENESIS

Dec 27, 2020Genesis date

02 · UPTIME

5+Years of operation

03 · BLOCKS

2,719,876Blocks produced

04 · SUPPLY

18.95M TDCCirculating supply

05 · INCIDENTS

0Security incidents

06 · FORKS

0Hard forks

// key links

Key Links

Source code Explorer Web wallet CoinGecko Whitepaper Network status

// community

Join the community

Talk to builders, follow releases, and help shape the future of Tidecoin across our public channels.

GitHub

Discord

// about faq

About FAQ

All FAQ

When was Tidecoin launched?

Tidecoin's genesis block was mined on December 27, 2020. The project was announced on BitcoinTalk on January 4, 2021.

Who created Tidecoin?

Tidecoin is an open-source project maintained by the Tidecoin community. All development is public on GitHub.

Has Tidecoin ever been hacked or had a security incident?

No publicly disclosed security incidents have been reported in Tidecoin's years of continuous operation. See /status for the incident disclosure log and verification links.