Warning This token standard is under active development and not considered production-ready yet.

SPT - Satoshi-Pegged Tokens

The Satoshi-Pegged Token uses the locked Satoshi value as the direct accounting method for the unit-accounting of a representative token (satoshis as the unit of account) E.g. 1 FooToken == 1 Satoshi, or 1 BarToken == 10 Satoshis

The direct meaning of the token is encoded as OP_RETURN data, and this OP_RETURN data is locked into the token through the enforcement of OP_PUSH_TX restrictions.

Fungible SPTs

A pegged token that allows one to

• split the locked value of the token
• reassign ownership of the split tokens.
• disallows modification of the token data

Non-Fungible SPTs

A pegged token that features

• reassign ownership of the token
• disallows splitting of the locked value of the token
• disallows modification of the token data

SPT++

Appendable SPTs

Building on the notion of an SPT, the SPT++ standard requires/allows one to append data to the end of the token's Output Script. These token feature

• reassignable ownership of the token
• append-only operation on the data of the token
• disallows splitting of the value of the token

Token Feature Table

Feature	Fungible SPT	Non-Fungible SPT	SPT++
split locked value	yes	no	no
allows modification of data	no	no	yes (append-only)
can reassign ownership	yes	optional	yes

Build

npm run build

Testing Locally

npm run test

Run Bitcoin Testnet Tests

npm run testnet