Cointelegraph - 2026-07-13
2 items collected.
1. Bitcoin Covenants Part 4: OP_CHECKSIGFROMSTACK and OP_CAT
Author: Cointelegraph by Kyrian Alex
Published: 7/13/2026, 11:00:00 PM
Categories: Research
OP_CSFS authenticates signatures over arbitrary data. OP_CAT concatenates stack values into a single message. Together, they let Bitcoin scripts verify transaction structure at spend time, without pre-signed key management or new consensus rules beyond the two opcodes themselves.
2. Global law firm launches MiCA compliance tool as crypto companies navigate new EU rules
Author: Cointelegraph by Sam Bourgi
Published: 7/13/2026, 9:40:32 PM
Categories: Latest News
Reed Smith’s Aquarius platform automates regulatory filings and legal workflows as demand for MiCA compliance tools grows across Europe.