Is there anyway to view what the deadline was that won a block?
Burst.ninja displays it on its stats page. How the info is extracted though I am not sure. Catbref can answer that for sure
The info comes from the blockchain with a standard API request:
curl --url 'http://localhost:8125/burst?requestType=getBlock&height=70000'
{"previousBlockHash":"3a65bce62f242c0e0469fb4ee5123f07f933be932370ab5c88afee6692dac16e","payloadLength":7920,"totalAmountNQT":"1845777980908",
"generationSignature":"88a7c7d33f01abee9f05510001c05ac3b5f9fc3fdf1d2329c946a41c28df44ce","generator":"13459661020862899104",
"generatorPublicKey":"68be2f7cf1c88caf47276b966fb697c9efe9d0b7debdf63b12df710eaf35a039","baseTarget":"1481092",
"payloadHash":"3c5ac861fbea80f3c0fd410a5ee6cac94f4ab6632c546cb82c77dff039b73c80","generatorRS":"BURST-ASX2-EDEV-QDRF-DLLLP","blockReward":"7350","nextBlock":"3278625908234401267","requestProcessingTime":1,"scoopNum":4040,"numberOfTransactions":45,
"blockSignature":"58c6272c9da74f945a05b85165a765d9b192b11d3aec64bc11ad32b76ccf4200c01478823c1c8c165f011a6f0ab84a7d91f46b1d0195cad525b2c6e64bbe58f8",
"transactions":["9325395788726045776","9598276348667342848","9822513335259451084","10680046966312418312","10827345421779279873","10890013873181639821","10994618202501144854","11336218817966664718","11511505232420421075","11652216872092970684","11823389376081775428","12047720667590966304","12221571889789979485","12495477135780329274","12508678294753144282","12624415036395115171","13279957760664654148","14600405980971226001","14690982676718532548","15297202017968671188","16128524506091644826","17294848650873311590","17481875302961814818","17518815030185321763","17811223609690777448","17975366925211525898","17987664800316416570","18095151730041897979","18110751200099069655","18402242071021169252","1509183065793204526","1674182747733770701","3664420335673229448","3855352788914417893","4247730525502848870","4393553929175529655","4405440361269743160","4995117508908356888","5114833881843952946","7498818187475113256","7601272711934632457","8522602079177816707","8723530613095049919","8817842778427598342","9148163035468669252"],
"nonce":"200159806","version":3,"totalFeeNQT":"4500000000","previousBlock":"1021231003659429178","block":"4972280526148845847","height":70000,"timestamp":16952580}
In there you can see "generator", "nonce", "baseTarget" and "snoopNum" - these are used to calculate deadlines in the same way your miner does.