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account announced the next MEV-shield key."},{"block_number":8621753,"extrinsic_index":2,"extrinsic_hash":"0x2fd10aa47f8d583fa27428c22439979fd3ecdb0a17c8d68ef5904c197848a7a7","signer":null,"call_module":"Drand","call_function":"write_pulse","call_args":[{"name":"pulses_payload","type":"PulsesPayload<MultiSigner, u32>","value":{"public":{"Sr25519":"0xb43f0fa5b22946e5227577fff32be5f066404dfae24b9a00ace9c51145c22a3b"},"pulses":[{"round":30417857,"signature":"0xa9167f56c79f910ec98930c3311f692f39360b186afe7c7dfa81b40082b265ff5900f11b5c14fc93439412cd60b906dd","randomness":"0x525f314521d70c31e011696b7868d335ff686775b27af79773dfe29b39448717"}],"block_number":8621752}},{"name":"signature","type":"Option<MultiSignature>","value":{"Sr25519":"0xeebbbd0bf63f3818e0224bafed645497e6246a2b4c1c059da3f79274a966d44777a18b13a726b8ec27e38d46c50e8b42e53b73a9db22ef7e8526b365be5bfb8f"}}],"success":true,"fee_tao":null,"tip_tao":null,"observed_at":"2026-07-14T19:22:36.000Z","summary":"Recorded a randomness 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