Sirius — names on the Bitcoin Cash chain

Names, without a registrar

Every ordinary domain name is a lease. Somebody owns the registry; somebody else runs the registrar; the name is yours until either changes their mind or your renewal fails. Sirius is a different thing shaped like the same thing — the name is a certificate on the chain, held in a wallet you control. Nobody renews it. Nobody revokes it. Nobody hosts it.

live

Ownership by key

Registration mints a small NFT to your wallet. Whoever holds the wallet controls the name. No account, no email, no recovery form.

live

Records point anywhere

Attach any of: h (page inside a transaction), s3 (Sia network), ip (a server you run), p (a reverse proxy), u (a redirect), tls (a pinned cert fingerprint).

live

No renewal

A registered name is registered forever. Nothing to remember. Nothing to lose while you weren't looking.

live

Fractions of a cent

Registration is one on-chain transaction. Storage is another. The whole lifecycle of an ordinary web presence costs less than one month of a conventional registrar's minimum bill.

How registration works

Pick a name. Any label, any TLD you want. There is no pre-existing registry — the chain decides what exists. Search availability on the registration page.
Mint the certificate. One Bitcoin Cash transaction writes a CashTokens NFT for the name and records its content pointers in a single OP_RETURN. Your wallet signs it; nobody else is involved. Currently chipnet (test network) — mainnet next.
Attach content. Update the records at any time, again with a signed transaction. Small pages fit inside the OP_RETURN. Larger sites go on Sia. Servers you already run can be pointed at with an ip record.
Anyone reads the chain. Resolvers (Ariadne, the Firefox extension, Theseus, the public relay) all read the same chain. No lookup goes through a middleman that could redirect it.

Start with a name search

TLDs

BNS on BCH is deliberately TLD-agnostic. Any 1–16 character TLD is registrable today; the chain decides what exists, not a committee. Below is the working set — the ones with a home and an established purpose.

TLD	What it's for	Status
`.bch`	The original TLD — general purpose	live
`.p2p`	Peer-to-peer software and services	live
`.bit`	Namecoin's legacy TLD, brought under BNS	live
`.deviant`	The Deviant division's namespace	live
`.nav`	Reserved for finalized products (Silent Mode + Deviant portfolio)	reserved
`.test`	Testing per RFC 2606 — never in production	live

New TLDs. Because there is no root registry to negotiate with, a new TLD is simply the first registration under a new suffix. If you genuinely need .mything to exist for your project, register example.mything and it does. Silent Mode's resolver clients will mint TLS certificates only for TLDs on a configured list (the CA is name-constrained) — additions are a config change, not a chain change.

Sirius vs an ordinary registrar

What you get	Ordinary registrar	Sirius
How ownership is proven	A row in the registry's database	An NFT in your wallet
Who can revoke it	The registrar, the registry, ICANN, a court order to any of them	Nobody
Renewal	Yearly — miss it and the name is auctioned	Never
Cost per name	$8 – $30 / year, forever	Fractions of a cent, once
Identity required	Email, sometimes phone, sometimes address, always payment method	A wallet — no email, no phone, no card
DNS resolution	ICANN → TLD registry → registrar's nameservers → you	Any resolver reads the chain directly
Web presence	Depends on a hosting provider that can suspend you	Attach content on Sia, on chain, or on your own server

Currently on chipnet. All Sirius names live on Bitcoin Cash chipnet (test network). This is deliberate for the alpha — mistakes cost nothing, everything is safe to experiment with. Mainnet migration is a separate transaction and comes after the tooling stabilizes.