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"https://bitcoinmagazine.com/glossary/bitcoin-covenants-op_cat-bip-347"
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"Bitcoin Covenants: OP_CAT (BIP 347)"
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"1746213296"
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"https://bitcoinmagazine.com/wp-content/uploads/2025/05/Bitcoin-Covenants_-OP_CAT-BIP-347.webp"
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"OP_CAT is a simple opcode that takes the top two data items on the stack and concatenates them together. Despite its simplicity, it can be used to construct and verify merkle trees directly on the stack, allowing for interesting behavior and functionality. It can also be used to emulate covenants, enabling full granular introspection of transactions."
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"content": "nostr:nprofile1qyd8wumn8ghj7ctjw35kxmr9wvhxcctev4erxtnwv4mhxqpqwg6f24v2csa7p6zy9828t3udmny0s3ledd6akx2dqksehd780krsc36atj\nhttps://bitcoinmagazine.com/wp-content/uploads/2025/05/Bitcoin-Covenants_-OP_CAT-BIP-347.webp\nBitcoin Magazine Bitcoin Covenants: OP_CAT (BIP 347) The fifth article in the Covenant series, examining the OP_CAT reactivation proposal from Ethan Heilman and Armin Sabouri. This post Bitcoin Covenants: OP_CAT (BIP 347) first appeared on Bitcoin Magazine and is written by Shinobi.\nhttps://bitcoinmagazine.com/glossary/bitcoin-covenants-op_cat-bip-347",
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