Create

Text inscriptions

Inscribe general texts and content on Kaspa.

Typescript example

const data = "abc";
const buf = Buffer.from(data);
const script = new ScriptBuilder()
  .addData(XOnlyPublicKey.fromAddress(account).toString())
  .addOp(Opcodes.OpCheckSig)
  .addOp(Opcodes.OpFalse)
  .addOp(Opcodes.OpIf)
  .addData(Buffer.from("kns"))
  .addI64(0n)
  .addData(buf)
  .addOp(Opcodes.OpEndIf);

Domain inscriptions

Create domains on Kaspa.

Standard

Domains follow the same standard as ENS

We use the ENS library to normalize the domain name.

Any characters outside this standard will not be verified.

Rules

• Price is calculated based on the visual character length of the domain. See here

  • For example: '🏳️‍🌈' has a visual character length of 1

  • We use graphemer to calculate the character length

• Domains are registered in a first-come, first-serve basis

• Fees have to be paid to the KNS receiving address in output 0 of the reveal transaction

  • Testnet 10 payment address: kaspatest:qq9h47etjv6x8jgcla0ecnp8mgrkfxm70ch3k60es5a50ypsf4h6sak3g0lru

  • Mainnet: kaspa:qyp4nvaq3pdq7609z09fvdgwtc9c7rg07fuw5zgeee7xpr085de59eseqfcmynn

• JSON format

  key	required	description
  op	yes	operation. "create"
  v	yes	inscription value. length has to be greater than 1.
  p	yes	protocol. "domain"
  s	no	the top level domain, defaults to kas, currently only supports kas

Pricing

• Mainnet (price in kaspa). char indicates character length of the string

  	1 char	2 char	3 char	4 char	5 char
  Price	4200	4200	2100	525	35

Typescript example

This would create a example.kas domain

const data = JSON.stringify(
  { op: "create", p: "domain", v: "example" },
  null,
  0
);
const buf = Buffer.from(data);
const script = new ScriptBuilder()
  .addData(XOnlyPublicKey.fromAddress(account).toString())
  .addOp(Opcodes.OpCheckSig)
  .addOp(Opcodes.OpFalse)
  .addOp(Opcodes.OpIf)
  .addData(Buffer.from("kns"))
  .addI64(0n)
  .addData(buf)
  .addOp(Opcodes.OpEndIf);

Inscriptions of other mimeTypes

• hex string of the file data

Typescript example

const mimeType = "image/jpeg";
const data = (file as Buffer).toString("hex");
const script = new ScriptBuilder()
  .addData(XOnlyPublicKey.fromAddress(account).toString())
  .addOp(Opcodes.OpCheckSig)
  .addOp(Opcodes.OpFalse)
  .addOp(Opcodes.OpIf)
  .addData(Buffer.from("kns"))
  .addOp(1)
  .addOp(1)
  .addData(Buffer.from(mimeType))
  .addI64(0n)
  .addData(data)
  .addOp(Opcodes.OpEndIf);