Bitcoin OP_CAT use cases series #4: Recursive covenants
A recursive covenant applies to the immediate transaction and subsequent transactions that spend the bitcoins, meaning the imposed conditions could be enforced recursively in perpetuity.
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Bitcoin OP_CAT use cases series #3: Vaults
Following our series #1 and #2, sCrypt demonstrates how to construct non-custodial vaults to provide enhanced security for stored bitcoins.
Bitcoin OP_CAT Use Cases Series #2: Merkle Trees
In this article, sCrypt enumerates the numerous applications for Merkle trees and how the OP_CAT opcode can be utilized to construct and verify blockchain transactions.
Trustless Ordinal sales using OP_CAT-enabled covenants on Bitcoin
In this piece, sCrypt demonstrates a trustless sale of an Ordinal NFT using a layer-1 covenant made possible by re-enabling OP_CAT, without intermediaries.