{"action":"created","issue":{"url":"https://api.github.com/repos/mimblewimble/grin/issues/905","repository_url":"https://api.github.com/repos/mimblewimble/grin","labels_url":"https://api.github.com/repos/mimblewimble/grin/issues/905/labels{/name}","comments_url":"https://api.github.com/repos/mimblewimble/grin/issues/905/comments","events_url":"https://api.github.com/repos/mimblewimble/grin/issues/905/events","html_url":"https://github.com/mimblewimble/grin/issues/905","id":309532642,"number":905,"title":"Occasional `InvalidPow` after having mined a block","user":{"login":"ignopeverell","id":22927561,"avatar_url":"https://avatars1.githubusercontent.com/u/22927561?v=4","gravatar_id":"","url":"https://api.github.com/users/ignopeverell","html_url":"https://github.com/ignopeverell","followers_url":"https://api.github.com/users/ignopeverell/followers","following_url":"https://api.github.com/users/ignopeverell/following{/other_user}","gists_url":"https://api.github.com/users/ignopeverell/gists{/gist_id}","starred_url":"https://api.github.com/users/ignopeverell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ignopeverell/subscriptions","organizations_url":"https://api.github.com/users/ignopeverell/orgs","repos_url":"https://api.github.com/users/ignopeverell/repos","events_url":"https://api.github.com/users/ignopeverell/events{/privacy}","received_events_url":"https://api.github.com/users/ignopeverell/received_events","type":"User","site_admin":false},"labels":[{"id":465821395,"url":"https://api.github.com/repos/mimblewimble/grin/labels/bug","name":"bug","color":"ee0701","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/mimblewimble/grin/milestones/5","html_url":"https://github.com/mimblewimble/grin/milestone/5","labels_url":"https://api.github.com/repos/mimblewimble/grin/milestones/5/labels","id":3219067,"number":5,"title":"Beta","description":"Before mainnet but more stable than testnet2.","creator":{"login":"ignopeverell","id":22927561,"avatar_url":"https://avatars1.githubusercontent.com/u/22927561?v=4","gravatar_id":"","url":"https://api.github.com/users/ignopeverell","html_url":"https://github.com/ignopeverell","followers_url":"https://api.github.com/users/ignopeverell/followers","following_url":"https://api.github.com/users/ignopeverell/following{/other_user}","gists_url":"https://api.github.com/users/ignopeverell/gists{/gist_id}","starred_url":"https://api.github.com/users/ignopeverell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ignopeverell/subscriptions","organizations_url":"https://api.github.com/users/ignopeverell/orgs","repos_url":"https://api.github.com/users/ignopeverell/repos","events_url":"https://api.github.com/users/ignopeverell/events{/privacy}","received_events_url":"https://api.github.com/users/ignopeverell/received_events","type":"User","site_admin":false},"open_issues":12,"closed_issues":2,"state":"open","created_at":"2018-03-26T18:16:07Z","updated_at":"2018-03-28T23:00:44Z","due_on":null,"closed_at":null},"comments":1,"created_at":"2018-03-28T21:08:59Z","updated_at":"2018-03-28T23:20:09Z","closed_at":null,"author_association":"OWNER","body":"Happened about a dozen times over the last 12h\r\n\r\n```\r\nMar 28 12:23:18.645 DEBG receive_coinbase: built candidate output - Identifier(193f2372b7a4b0ecb84a), 506\r\nMar 28 12:23:18.645 DEBG receive_coinbase: BlockFees { fees: 0, height: 1523, key_id: Some(Identifier(193f2372b7a4b0ecb84a)) }\r\nMar 28 12:23:18.782 DEBG get_coinbase: BlockFees { fees: 0, height: 1523, key_id: Some(Identifier(193f2372b7a4b0ecb84a)) }\r\nMar 28 12:23:18.783 DEBG (Server ID: Port 13414) Built new block with 0 inputs and 1 outputs, network difficulty: 3, cumulative difficulty 15398\r\nMar 28 12:23:18.799 DEBG Rollbacking txhashset extension. sizes (3156, 3156, 3101)\r\nMar 28 12:23:18.799 DEBG (Server ID: Port 13414) Mining Cuckoo30 for max 90s on 15398 @ 1523 [6906ef35].\r\nMar 28 12:23:18.920 DEBG Found cuckoo solution! nonce 18062447192762667700 gave difficulty 9 (block diff 3)\r\nMar 28 12:23:19.869 INFO (Server ID: Port 13414) Found valid proof of work, adding block 1b9bdfa2.\r\nMar 28 12:23:19.870 DEBG pipe: process_block 1b9bdfa2 at 1523 with 0 inputs, 1 outputs, 1 kernels\r\nMar 28 12:23:19.870 ERRO pipe: validate_header failed for cuckoo shift size 30\r\nMar 28 12:23:19.870 INFO Rejected block 1b9bdfa2 at 1523: InvalidPow\r\nMar 28 12:23:19.870 ERRO (Server ID: Port 13414) Error validating mined block: InvalidPow\r\n```"},"comment":{"url":"https://api.github.com/repos/mimblewimble/grin/issues/comments/377069672","html_url":"https://github.com/mimblewimble/grin/issues/905#issuecomment-377069672","issue_url":"https://api.github.com/repos/mimblewimble/grin/issues/905","id":377069672,"user":{"login":"ignopeverell","id":22927561,"avatar_url":"https://avatars1.githubusercontent.com/u/22927561?v=4","gravatar_id":"","url":"https://api.github.com/users/ignopeverell","html_url":"https://github.com/ignopeverell","followers_url":"https://api.github.com/users/ignopeverell/followers","following_url":"https://api.github.com/users/ignopeverell/following{/other_user}","gists_url":"https://api.github.com/users/ignopeverell/gists{/gist_id}","starred_url":"https://api.github.com/users/ignopeverell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ignopeverell/subscriptions","organizations_url":"https://api.github.com/users/ignopeverell/orgs","repos_url":"https://api.github.com/users/ignopeverell/repos","events_url":"https://api.github.com/users/ignopeverell/events{/privacy}","received_events_url":"https://api.github.com/users/ignopeverell/received_events","type":"User","site_admin":false},"created_at":"2018-03-28T23:20:09Z","updated_at":"2018-03-28T23:20:09Z","author_association":"OWNER","body":"@tromp @yeastplume rings any bell?"}}
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